Merge pull request #725 from Yan0613/main

[feat]: add new sample multirpc
diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 75e020b..691acbc 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -18,7 +18,7 @@
       # If you want to matrix build, you can append the following list.
       matrix:
         go_version:
-          - 1.17
+          - '1.20'
         os:
           - ubuntu-latest
 
@@ -42,19 +42,14 @@
           # Cache
           path: ~/go/pkg/mod
           # Cache key
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          key: ${{ runner.os }}-go-${{ matrix.go_version }}-${{ hashFiles('**/go.sum') }}
           # An ordered list of keys to use for restoring the cache if no cache hit occurred for key
           restore-keys: |
-            ${{ runner.os }}-go-
+            ${{ runner.os }}-go-${{ matrix.go_version }}-
 
       - name: Get dependencies
         run: |
-          if [ -f Gopkg.toml ]; then
-              curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
-              dep ensure
-          else
-              go get -v -t -d ./...
-          fi
+          go mod tidy
 
       - name: Go Fmt
         run: |
@@ -64,6 +59,15 @@
       - name: Check License Header
         uses: apache/skywalking-eyes/header@e1a02359b239bd28de3f6d35fdc870250fa513d5
 
+      - name: Set Go version again to override skywalking
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go_version }}
+
+      - name: Check Go version
+        run: |
+          go version
+
       - name: Switch Dubbo-go version
         run: |
           # Acquire information of branch
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index ef45464..18b7dc3 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -21,11 +21,11 @@
     strategy:
       matrix:
         golang:
-          - 1.17
+          - '1.20'
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.17
+          go-version: ${{ matrix.go_version }}
 
       - uses: actions/checkout@v3
 
@@ -48,7 +48,7 @@
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3.4.0
         with:
-          version: v1.44.2
+          version: v1.54
           args: --timeout=10m
           skip-go-installation: true
           skip-pkg-cache: true
diff --git a/compatibility/context/dubbo/go-client/cmd/client.go b/compatibility/context/dubbo/go-client/cmd/client.go
index 8e30bd0..89f554b 100644
--- a/compatibility/context/dubbo/go-client/cmd/client.go
+++ b/compatibility/context/dubbo/go-client/cmd/client.go
@@ -51,7 +51,7 @@
 	return "org.apache.dubbo.ContextContent"
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	var userProvider = &UserProvider{}
 	config.SetConsumerService(userProvider)
diff --git a/compatibility/context/dubbo/go-server/cmd/server.go b/compatibility/context/dubbo/go-server/cmd/server.go
index 41a091e..6c2bc8b 100644
--- a/compatibility/context/dubbo/go-server/cmd/server.go
+++ b/compatibility/context/dubbo/go-server/cmd/server.go
@@ -83,6 +83,7 @@
 	return "org.apache.dubbo.ContextContent"
 }
 
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/compatibility/direct/README.md b/compatibility/direct/README.md
index 6a8aa63..da91da9 100644
--- a/compatibility/direct/README.md
+++ b/compatibility/direct/README.md
@@ -91,7 +91,7 @@
 #### Consumer
 
 1. Set up the `dubbo service` you need to subscribe to at the beginning of the program startup.
-   Make sure that the configuration file [client.yml](go-client/conf/client.yml) has been configured with the relevant information of the subscription service, and the service properties can be customized to override the configuration of the Provider's properties.
+   Make sure that the configuration file [dubbogo.yml](go-client/conf/dubbogo.yml) has been configured with the relevant information of the subscription service, and the service properties can be customized to override the configuration of the Provider's properties.
    Retain minimum configuration `application` and `references` verification point-to-point direct connection effect, no need to configure the registry.
 
 ```go
@@ -152,7 +152,7 @@
 
 ```shell
 APP_LOG_CONF_FILE=direct/go-client/conf/log.yml;
-CONF_CONSUMER_FILE_PATH=direct/go-client/conf/client.yml
+DUBBO_GO_CONFIG_PATH=direct/go-client/conf/dubbogo.yml
 ```
 
 See [dubbo-go/.../env.go](https://dubbo.apache.org/dubbo-go/v3/blob/master/common/constant/env.go)
diff --git a/compatibility/direct/README_zh.md b/compatibility/direct/README_zh.md
index 9baf204..e3c41fc 100644
--- a/compatibility/direct/README_zh.md
+++ b/compatibility/direct/README_zh.md
@@ -94,7 +94,7 @@
 #### 服务消费者
 
 1. 在程序启动之初设置需要订阅的 `dubbo` 服务,
-   确保配置文件 `client.yml` 已配置订阅服务相关信息,可自定义设置服务属性等,覆盖 Provider 的属性配置,详情参阅 [client.yml](go-client/conf/client.yml),
+   确保配置文件 `dubbogo.yml` 已配置订阅服务相关信息,可自定义设置服务属性等,覆盖 Provider 的属性配置,详情参阅 [dubbogo.yml](go-client/conf/dubbogo.yml),
    保留最少配置 `application` 和 `references` 验证点对点直连效果,无需注册中心等配置
 
 ```go
@@ -153,7 +153,7 @@
 
 ```shell
 APP_LOG_CONF_FILE=direct/go-client/conf/log.yml;
-CONF_CONSUMER_FILE_PATH=direct/go-client/conf/client.yml
+DUBBO_GO_CONFIG_PATH=direct/go-client/conf/dubbogo.yml
 ```
 
 详情请参阅 [dubbo-go/.../env.go](https://dubbo.apache.org/dubbo-go/v3/blob/master/common/constant/env.go)
diff --git a/compatibility/error/triple/hessian2/go-client/cmd/client.go b/compatibility/error/triple/hessian2/go-client/cmd/client.go
index 03af75b..9c2a949 100644
--- a/compatibility/error/triple/hessian2/go-client/cmd/client.go
+++ b/compatibility/error/triple/hessian2/go-client/cmd/client.go
@@ -39,7 +39,7 @@
 	hessian.RegisterPOJO(&User{})
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/compatibility/rpc/grpc/go-client/cmd/client.go b/compatibility/rpc/grpc/go-client/cmd/client.go
index f6dd14b..9fdac61 100644
--- a/compatibility/rpc/grpc/go-client/cmd/client.go
+++ b/compatibility/rpc/grpc/go-client/cmd/client.go
@@ -38,7 +38,7 @@
 	config.SetConsumerService(grpcGreeterImpl)
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/compatibility/rpc/triple/hessian2/go-client/cmd/client.go b/compatibility/rpc/triple/hessian2/go-client/cmd/client.go
index 9805412..a0c06b3 100644
--- a/compatibility/rpc/triple/hessian2/go-client/cmd/client.go
+++ b/compatibility/rpc/triple/hessian2/go-client/cmd/client.go
@@ -42,7 +42,7 @@
 	hessian.RegisterPOJO(&ComplexData{})
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/compatibility/rpc/triple/msgpack/go-client/cmd/client.go b/compatibility/rpc/triple/msgpack/go-client/cmd/client.go
index c2eb2bd..b323ed8 100644
--- a/compatibility/rpc/triple/msgpack/go-client/cmd/client.go
+++ b/compatibility/rpc/triple/msgpack/go-client/cmd/client.go
@@ -43,7 +43,7 @@
 	config.SetConsumerService(userProvider)
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/compatibility/tls/grpc/go-client/cmd/client.go b/compatibility/tls/grpc/go-client/cmd/client.go
index e2bee8a..f493139 100644
--- a/compatibility/tls/grpc/go-client/cmd/client.go
+++ b/compatibility/tls/grpc/go-client/cmd/client.go
@@ -38,7 +38,7 @@
 	config.SetConsumerService(grpcGreeterImpl)
 }
 
-// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to "conf/client.yml" before run
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "conf/dubbogo.yml" before run
 func main() {
 	if err := config.Load(); err != nil {
 		panic(err)
diff --git a/go.mod b/go.mod
index dde5209..ab70050 100644
--- a/go.mod
+++ b/go.mod
@@ -27,4 +27,119 @@
 	google.golang.org/protobuf v1.33.0
 )
 
-go 1.15
+require (
+	cloud.google.com/go/compute v1.19.1 // indirect
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	github.com/RoaringBitmap/roaring v1.2.3 // indirect
+	github.com/Workiva/go-datastructures v1.0.52 // indirect
+	github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5 // indirect
+	github.com/aliyun/alibaba-cloud-sdk-go v1.61.1704 // indirect
+	github.com/apache/dubbo-getty v1.4.9 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bits-and-blooms/bitset v1.2.0 // indirect
+	github.com/buger/jsonparser v1.1.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.1.3 // indirect
+	github.com/census-instrumentation/opencensus-proto v0.4.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cncf/udpa/go v0.0.0-20220112060539-c52dc94e7fbe // indirect
+	github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4 // indirect
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/creasty/defaults v1.5.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dlclark/regexp2 v1.7.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.10.1 // indirect
+	github.com/envoyproxy/go-control-plane v0.11.1-0.20230524094728-9239064ad72f // indirect
+	github.com/envoyproxy/protoc-gen-validate v0.10.1 // indirect
+	github.com/go-co-op/gocron v1.9.0 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.12.0 // indirect
+	github.com/go-resty/resty/v2 v2.7.0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.11.3 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
+	github.com/hashicorp/vault/sdk v0.7.0 // indirect
+	github.com/influxdata/tdigest v0.0.1 // indirect
+	github.com/jinzhu/copier v0.3.5 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/k0kubun/pp v3.0.1+incompatible // indirect
+	github.com/knadh/koanf v1.5.0 // indirect
+	github.com/leodido/go-urn v1.2.2 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.6 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/mschoch/smat v0.2.0 // indirect
+	github.com/natefinch/lumberjack v2.0.0+incompatible // indirect
+	github.com/oliveagle/jsonpath v0.0.0-20180606110733-2e52cf6e6852 // indirect
+	github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492 // indirect
+	github.com/pelletier/go-toml v1.9.3 // indirect
+	github.com/pierrec/lz4 v2.6.1+incompatible // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/polarismesh/polaris-go v1.3.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/prometheus/client_golang v1.13.0 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/shirou/gopsutil/v3 v3.22.2 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.10 // indirect
+	github.com/tklauser/numcpus v0.4.0 // indirect
+	github.com/uber/jaeger-lib v2.4.1+incompatible // indirect
+	github.com/ugorji/go/codec v1.2.6 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.7 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.7 // indirect
+	go.etcd.io/etcd/client/v3 v3.5.7 // indirect
+	go.opentelemetry.io/contrib/propagators/b3 v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/zipkin v1.10.0 // indirect
+	go.opentelemetry.io/otel/trace v1.11.0 // indirect
+	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
+	go.uber.org/atomic v1.10.0 // indirect
+	go.uber.org/multierr v1.8.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/oauth2 v0.7.0 // indirect
+	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/genproto v0.0.0-20230526161137-0005af68ea54 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20230525234035-dd9d682886f9 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 // indirect
+	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	skywalking.apache.org/repo/goapi v0.0.0-20220401015832-2c9eee9481eb // indirect
+	vimagination.zapto.org/byteio v0.0.0-20200222190125-d27cba0f0b10 // indirect
+)
+
+go 1.20
diff --git a/go.sum b/go.sum
index 64aa085..f43eb0b 100644
--- a/go.sum
+++ b/go.sum
@@ -3,7 +3,6 @@
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
@@ -14,598 +13,34 @@
 cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
 cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
-cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
-cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
-cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
-cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
-cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
-cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAVY=
-cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
-cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
-cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
-cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
-cloud.google.com/go v0.94.1/go.mod h1:qAlAugsXlC+JWO+Bke5vCtc9ONxjQT3drlTTnAplMW4=
-cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Udc=
-cloud.google.com/go v0.99.0/go.mod h1:w0Xx2nLzqWJPuozYQX+hFfCSI8WioryfRDzkoI/Y2ZA=
-cloud.google.com/go v0.100.1/go.mod h1:fs4QogzfH5n2pBXBP9vRiU+eCny7lD2vmFZy79Iuw1U=
-cloud.google.com/go v0.100.2/go.mod h1:4Xra9TjzAeYHrl5+oeLlzbM2k3mjVhZh4UqTZ//w99A=
-cloud.google.com/go v0.102.0/go.mod h1:oWcCzKlqJ5zgHQt9YsaeTY9KzIvjyy0ArmiBUgpQ+nc=
-cloud.google.com/go v0.102.1/go.mod h1:XZ77E9qnTEnrgEOvr4xzfdX5TRo7fB4T2F4O6+34hIU=
-cloud.google.com/go v0.104.0/go.mod h1:OO6xxXdJyvuJPcEPBLN9BJPD+jep5G1+2U5B5gkRYtA=
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@@ -613,7 +48,6 @@
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@@ -638,10 +72,7 @@
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@@ -652,10 +83,7 @@
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@@ -666,7 +94,6 @@
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@@ -696,23 +123,17 @@
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@@ -726,7 +147,6 @@
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@@ -736,16 +156,11 @@
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@@ -754,7 +169,6 @@
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@@ -775,7 +189,6 @@
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
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 github.com/dlclark/regexp2 v1.7.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
-github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
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 github.com/dubbogo/go-zookeeper v1.0.4-0.20211212162352-f9d2183d89d5 h1:XoR8SSVziXe698dt4uZYDfsmHpKLemqAgFyndQsq5Kw=
 github.com/dubbogo/go-zookeeper v1.0.4-0.20211212162352-f9d2183d89d5/go.mod h1:fn6n2CAEer3novYgk9ULLwAjuV8/g4DdC2ENwRb6E+c=
@@ -815,7 +228,6 @@
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
-github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
@@ -823,14 +235,9 @@
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 github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
-github.com/envoyproxy/go-control-plane v0.10.3/go.mod h1:fJJn/j26vwOu972OllsvAgJJM//w9BV6Fxbg2LuVd34=
-github.com/envoyproxy/go-control-plane v0.11.0/go.mod h1:VnHyVMpzcLvCFt9yUz1UnCwHLhwx1WguiVDV7pTG/tI=
 github.com/envoyproxy/go-control-plane v0.11.1-0.20230524094728-9239064ad72f h1:7T++XKzy4xg7PKy+bM+Sa9/oe1OC88yz2hXQUISoXfA=
 github.com/envoyproxy/go-control-plane v0.11.1-0.20230524094728-9239064ad72f/go.mod h1:sfYdkwUW4BA3PbKjySwjJy+O4Pu0h62rlqCMHNk+K+Q=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
-github.com/envoyproxy/protoc-gen-validate v0.6.7/go.mod h1:dyJXwwfPK2VSqiB9Klm1J6romD608Ba7Hij42vrOBCo=
-github.com/envoyproxy/protoc-gen-validate v0.9.1/go.mod h1:OKNgG7TCp5pF4d6XftA0++PMirau2/yoOwVac3AbF2w=
-github.com/envoyproxy/protoc-gen-validate v0.10.0/go.mod h1:DRjgyB0I43LtJapqN6NiRwroiAU2PaFuvk/vjgh61ss=
 github.com/envoyproxy/protoc-gen-validate v0.10.1 h1:c0g45+xCJhdgFGw7a5QAfdS4byAbud7miNWJ1WwEVf8=
 github.com/envoyproxy/protoc-gen-validate v0.10.1/go.mod h1:DRjgyB0I43LtJapqN6NiRwroiAU2PaFuvk/vjgh61ss=
 github.com/evanphx/json-patch/v5 v5.5.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
@@ -840,7 +247,6 @@
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
-github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible h1:TcekIExNqud5crz4xD2pavyTgWiPvpYe4Xau31I0PRk=
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
 github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHquHwclZch5g=
@@ -853,8 +259,6 @@
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 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
-github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
-github.com/getsentry/raven-go v0.2.0 h1:no+xWJRb5ZI7eE8TWgIq1jLulQiIoLG0IfYxv5JYMGs=
 github.com/getsentry/raven-go v0.2.0/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2/go.mod h1:/20jfyN9Y5QPEAprSgKAUr+glWDY39ZiUEAYOEv5dsE=
@@ -863,11 +267,6 @@
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-github.com/go-fonts/dejavu v0.1.0/go.mod h1:4Wt4I4OU2Nq9asgDCteaAaWZOV24E+0/Pwo0gppep4g=
-github.com/go-fonts/latin-modern v0.2.0/go.mod h1:rQVLdDMK+mK1xscDwsqM5J8U2jrRa3T0ecnM9pNujks=
-github.com/go-fonts/liberation v0.1.1/go.mod h1:K6qoJYypsmfVjWg8KOVDQhLc8UDgIK2HYqyqAO9z7GY=
-github.com/go-fonts/liberation v0.2.0/go.mod h1:K6qoJYypsmfVjWg8KOVDQhLc8UDgIK2HYqyqAO9z7GY=
-github.com/go-fonts/stix v0.1.0/go.mod h1:w/c1f0ldAUlJmLBvlbkvVXLAD+tAMqobIIQpmnUIzUY=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
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@@ -876,8 +275,6 @@
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-github.com/go-latex/latex v0.0.0-20210118124228-b3d85cf34e07/go.mod h1:CO1AlKB2CSIqUrmQPqA0gdRIlnLEY0gK5JGjh37zN5U=
-github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81/go.mod h1:SX0U8uGpxhq9o2S/CELCSUxEWWAuoCUcVCQWv7G2OCk=
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 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
@@ -893,11 +290,8 @@
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-github.com/go-pdf/fpdf v0.5.0/go.mod h1:HzcnA+A23uwogo0tp9yU+l3V+KXhiESpt1PMayhOh5M=
-github.com/go-pdf/fpdf v0.6.0/go.mod h1:HzcnA+A23uwogo0tp9yU+l3V+KXhiESpt1PMayhOh5M=
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-github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
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@@ -914,7 +308,6 @@
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 github.com/go-test/deep v1.0.2-0.20181118220953-042da051cf31/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
-github.com/goccy/go-json v0.9.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
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 github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
@@ -929,7 +322,6 @@
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/glog v1.0.0/go.mod h1:EWib/APOK0SL3dFbYqvxE3UYd8E6s1ouQ7iEp/0LWV4=
 github.com/golang/glog v1.1.0 h1:/d3pCKDPWNnvIWe0vVUpNP32qc8U3PDVxySP/y360qE=
-github.com/golang/glog v1.1.0/go.mod h1:pfYeQZ3JWZoXTV5sFc986z3HTpwQs9At6P4ImfuP3NQ=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -961,14 +353,11 @@
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-github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx4u74HPM=
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-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
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 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
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-github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
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 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/gonum/blas v0.0.0-20181208220705-f22b278b28ac/go.mod h1:P32wAyui1PQ58Oce/KYkOqQv8cVw1zAapXOl+dRFGbc=
@@ -981,7 +370,6 @@
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/flatbuffers v2.0.8+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
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@@ -989,7 +377,6 @@
 github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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 github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -997,13 +384,9 @@
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-github.com/google/martian/v3 v3.1.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
-github.com/google/martian/v3 v3.2.1/go.mod h1:oBOf6HBosgwRXnUGWUB05QECsc6uvmMiJ3+6W4l/CUk=
-github.com/google/martian/v3 v3.3.2/go.mod h1:oBOf6HBosgwRXnUGWUB05QECsc6uvmMiJ3+6W4l/CUk=
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@@ -1089,7 +448,6 @@
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@@ -1231,12 +577,8 @@
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@@ -1299,7 +638,6 @@
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-github.com/nacos-group/nacos-sdk-go v1.1.1 h1:beczWcOoTaVBMgCgikqvZflrN5Xbw7pWAWpxl+VJGIA=
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@@ -1357,23 +695,17 @@
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-github.com/phpdave11/gofpdf v1.4.2/go.mod h1:zpO6xFn9yxo3YLyMvW8HcKWVdbNqgIfOOp2dXMnm1mY=
-github.com/phpdave11/gofpdi v1.0.12/go.mod h1:vBmVV0Do6hSBHC8uKUQ71JGW+ZGQq74llk/7bXwjDoI=
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-github.com/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
-github.com/pkg/sftp v1.13.1/go.mod h1:3HaPG6Dq1ILlpPZRO0HVMrsydcdLt6HRDccSgb87qRg=
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@@ -1436,7 +768,6 @@
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-github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
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 github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
@@ -1445,12 +776,9 @@
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+github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
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-github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
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-github.com/ruudk/golang-pdf417 v0.0.0-20181029194003-1af4ab5afa58/go.mod h1:6lfFZQK844Gfx8o5WFuvpxWRwnSoipWe/p622j1v06w=
-github.com/ruudk/golang-pdf417 v0.0.0-20201230142125-a7e3863a1245/go.mod h1:pQAZKsJ8yyVxGRWYNEm9oFB8ieLgKFnamEyDmSA0BRk=
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@@ -1460,7 +788,6 @@
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-github.com/shirou/gopsutil v3.20.11+incompatible h1:LJr4ZQK4mPpIV5gOa4jCOKOGb4ty4DZO54I4FGqIpto=
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@@ -1486,9 +813,6 @@
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-github.com/spf13/afero v1.3.3/go.mod h1:5KUK8ByomD5Ti5Artl0RtHeI5pTF7MIDuXL3yY520V4=
-github.com/spf13/afero v1.6.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
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@@ -1516,9 +840,7 @@
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-github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
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@@ -1544,7 +866,6 @@
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 github.com/uber/jaeger-lib v2.4.1+incompatible/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/AauajbLI56U=
-github.com/ugorji/go v1.2.6 h1:tGiWC9HENWE2tqYycIqFTNorMmFRVhNwCpDOpWqnk8E=
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 github.com/ugorji/go/codec v1.2.6 h1:7kbGefxLoDBuYXOms4yD7223OpNMMPNPZxXk5TvFcyQ=
 github.com/ugorji/go/codec v1.2.6/go.mod h1:V6TCNZ4PHqoHGFZuSG1W8nrCzzdgA2DozYxWFFpvxTw=
@@ -1562,11 +883,8 @@
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
-github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
-github.com/zeebo/xxh3 v1.0.2/go.mod h1:5NWz9Sef7zIDm2JHfFlcQvNekmcEl9ekUZQQKCYaDcA=
 github.com/zouyx/agollo/v3 v3.4.5/go.mod h1:LJr3kDmm23QSW+F1Ol4TMHDa7HvJvscMdVxJ2IpUTVc=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
@@ -1575,17 +893,14 @@
 go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738 h1:VcrIfasaLFkyjk6KNlXQSzO+B0fZcnECiDrKJsfxka0=
 go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
 go.etcd.io/etcd/api/v3 v3.5.0-alpha.0/go.mod h1:mPcW6aZJukV6Aa81LSKpBjQXTWlXB5r74ymPoSWa3Sw=
-go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/api/v3 v3.5.4/go.mod h1:5GB2vv4A4AOn3yk7MftYGHkUfGtDHnEraIjym4dYz5A=
 go.etcd.io/etcd/api/v3 v3.5.7 h1:sbcmosSVesNrWOJ58ZQFitHMdncusIifYcrBfwrlJSY=
 go.etcd.io/etcd/api/v3 v3.5.7/go.mod h1:9qew1gCdDDLu+VwmeG+iFpL+QlpHTo7iubavdVDgCAA=
-go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/pkg/v3 v3.5.4/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/pkg/v3 v3.5.7 h1:y3kf5Gbp4e4q7egZdn5T7W9TSHUvkClN6u+Rq9mEOmg=
 go.etcd.io/etcd/client/pkg/v3 v3.5.7/go.mod h1:o0Abi1MK86iad3YrWhgUsbGx1pmTS+hrORWc2CamuhY=
 go.etcd.io/etcd/client/v2 v2.305.0-alpha.0/go.mod h1:kdV+xzCJ3luEBSIeQyB/OEKkWKd8Zkux4sbDeANrosU=
 go.etcd.io/etcd/client/v2 v2.305.0 h1:ftQ0nOOHMcbMS3KIaDQ0g5Qcd6bhaBrQT6b89DfwLTs=
-go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=
 go.etcd.io/etcd/client/v3 v3.5.0-alpha.0/go.mod h1:wKt7jgDgf/OfKiYmCq5WFGxOFAkVMLxiiXgLDFhECr8=
 go.etcd.io/etcd/client/v3 v3.5.4/go.mod h1:ZaRkVgBZC+L+dLCjTcF1hRXpgZXQPOvnA/Ak/gq3kiY=
 go.etcd.io/etcd/client/v3 v3.5.7 h1:u/OhpiuCgYY8awOHlhIhmGIGpxfBU/GZBUP3m/3/Iz4=
@@ -1603,13 +918,10 @@
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
-go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
 go.opencensus.io v0.23.0/go.mod h1:XItmlyltB5F7CS4xOC1DcqMoFqwtC6OG2xF7mCv7P7E=
-go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/contrib/propagators/b3 v1.10.0 h1:6AD2VV8edRdEYNaD8cNckpzgdMLU2kbV9OYyxt2kvCg=
 go.opentelemetry.io/contrib/propagators/b3 v1.10.0/go.mod h1:oxvamQ/mTDFQVugml/uFS59+aEUnFLhmd1wsG+n5MOE=
 go.opentelemetry.io/otel v1.7.0/go.mod h1:5BdUoMIz5WEs0vt0CUEMtSSaTSHBBVwrhnz7+nrD5xk=
-go.opentelemetry.io/otel v1.10.0/go.mod h1:NbvWjCthWHKBEUMpf0/v8ZRZlni86PpGFEMA9pnQSnQ=
 go.opentelemetry.io/otel v1.11.0 h1:kfToEGMDq6TrVrJ9Vht84Y8y9enykSZzDDZglV0kIEk=
 go.opentelemetry.io/otel v1.11.0/go.mod h1:H2KtuEphyMvlhZ+F7tg9GRhAOe60moNx61Ex+WmiKkk=
 go.opentelemetry.io/otel/exporters/jaeger v1.10.0 h1:7W3aVVjEYayu/GOqOVF4mbTvnCuxF1wWu3eRxFGQXvw=
@@ -1629,11 +941,9 @@
 go.opentelemetry.io/otel/sdk v1.10.0 h1:jZ6K7sVn04kk/3DNUdJ4mqRlGDiXAVuIG+MMENpTNdY=
 go.opentelemetry.io/otel/sdk v1.10.0/go.mod h1:vO06iKzD5baltJz1zarxMCNHFpUlUiOy4s65ECtn6kE=
 go.opentelemetry.io/otel/trace v1.7.0/go.mod h1:fzLSB9nqR2eXzxPXb2JW9IKE+ScyXA48yyE4TNvoHqU=
-go.opentelemetry.io/otel/trace v1.10.0/go.mod h1:Sij3YYczqAdz+EhmGhE6TpTxUO5/F/AzrK+kxfGqySM=
 go.opentelemetry.io/otel/trace v1.11.0 h1:20U/Vj42SX+mASlXLmSGBg6jpI1jQtv682lZtTAOVFI=
 go.opentelemetry.io/otel/trace v1.11.0/go.mod h1:nyYjis9jy0gytE9LXGU+/m1sHTKbRY0fX0hulNNDP1U=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
-go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0 h1:IVN6GR+mhC4s5yfcTbmzHYODqvWAp3ZedA2SJPI1Nnw=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
@@ -1647,7 +957,6 @@
 go.uber.org/goleak v1.1.11-0.20210813005559-691160354723/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
-go.uber.org/goleak v1.1.12/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
@@ -1669,19 +978,15 @@
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210920023735-84f357641f63/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
 golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1691,29 +996,17 @@
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
 golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
-golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3/go.mod h1:NOZ3BPKG0ec/BKJQgnvsSFpcKLM5xXVWnvZS97DWHgE=
 golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
 golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
+golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5 h1:FR+oGxGfbQu1d+jglI3rCkjAjUnhRSZcUxr+DqlDLNo=
 golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5/go.mod h1:4M0jN8W1tt0AVLNr8HDosyJCDCDuyL9N9+3m7wDWgKw=
-golang.org/x/exp v0.0.0-20220827204233-334a2380cb91 h1:tnebWN09GYg9OLPss1KXj8txwZc6X6uMr6VFdcGNbHw=
-golang.org/x/exp v0.0.0-20220827204233-334a2380cb91/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
 golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20200119044424-58c23975cae1/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20200430140353-33d19683fad8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20200618115811-c13761719519/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20201208152932-35266b937fa6/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20210216034530-4410531fe030/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.0.0-20210607152325-775e3b0c77b9/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/image v0.0.0-20220302094943-723b81ca9867/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -1724,8 +1017,6 @@
 golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
 golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
-golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
-golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 h1:VLliZ0d+/avPrXXH+OakdXhpJuEoBZuwh1m2j7U6Iug=
 golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
@@ -1735,16 +1026,8 @@
 golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.5.0/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
-golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.9.0 h1:KENHtAZL2y3NLMYZeHY9DW8HW8V+kQyJsY/V9JlKvCs=
-golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20180530234432-1e491301e022/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1785,20 +1068,13 @@
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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-golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
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 golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
-golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210917221730-978cfadd31cf/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211029224645-99673261e6eb/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
@@ -1806,24 +1082,7 @@
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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-golang.org/x/net v0.0.0-20220325170049-de3da57026de/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
-golang.org/x/net v0.0.0-20220412020605-290c469a71a5/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
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-golang.org/x/net v0.0.0-20220607020251-c690dde0001d/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.0.0-20220617184016-355a448f1bc9/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
-golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
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 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -1831,29 +1090,9 @@
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 golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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 golang.org/x/oauth2 v0.7.0 h1:qe6s0zUXlPX80/dITx3440hWZ7GwMwgDDyrSGTPJG/g=
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@@ -1867,12 +1106,8 @@
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 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -1925,103 +1160,49 @@
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@@ -2030,11 +1211,8 @@
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@@ -2056,7 +1234,6 @@
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@@ -2148,47 +1302,6 @@
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@@ -2233,117 +1346,16 @@
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-google.golang.org/genproto v0.0.0-20221202195650-67e5cbc046fd/go.mod h1:cTsE614GARnxrLsqKREzmNYJACSWWpAWdNMwnD7c2BE=
-google.golang.org/genproto v0.0.0-20221227171554-f9683d7f8bef/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
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-google.golang.org/genproto v0.0.0-20230124163310-31e0e69b6fc2/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
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-google.golang.org/genproto v0.0.0-20230127162408-596548ed4efa/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
-google.golang.org/genproto v0.0.0-20230209215440-0dfe4f8abfcc/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
-google.golang.org/genproto v0.0.0-20230216225411-c8e22ba71e44/go.mod h1:8B0gmkoRebU8ukX6HP+4wrVQUY1+6PkQ44BSyIlflHA=
-google.golang.org/genproto v0.0.0-20230222225845-10f96fb3dbec/go.mod h1:3Dl5ZL0q0isWJt+FVcfpQyirqemEuLAK/iFvg1UP1Hw=
-google.golang.org/genproto v0.0.0-20230223222841-637eb2293923/go.mod h1:3Dl5ZL0q0isWJt+FVcfpQyirqemEuLAK/iFvg1UP1Hw=
-google.golang.org/genproto v0.0.0-20230303212802-e74f57abe488/go.mod h1:TvhZT5f700eVlTNwND1xoEZQeWTB2RY/65kplwl/bFA=
-google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
-google.golang.org/genproto v0.0.0-20230320184635-7606e756e683/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
-google.golang.org/genproto v0.0.0-20230323212658-478b75c54725/go.mod h1:UUQDJDOlWu4KYeJZffbWgBkS1YFobzKbLVfK69pe0Ak=
-google.golang.org/genproto v0.0.0-20230330154414-c0448cd141ea/go.mod h1:UUQDJDOlWu4KYeJZffbWgBkS1YFobzKbLVfK69pe0Ak=
-google.golang.org/genproto v0.0.0-20230331144136-dcfb400f0633/go.mod h1:UUQDJDOlWu4KYeJZffbWgBkS1YFobzKbLVfK69pe0Ak=
-google.golang.org/genproto v0.0.0-20230525234025-438c736192d0/go.mod h1:9ExIQyXL5hZrHzQceCwuSYwZZ5QZBazOcprJ5rgs3lY=
 google.golang.org/genproto v0.0.0-20230526161137-0005af68ea54 h1:9NWlQfY2ePejTmfwUH1OWwmznFa+0kKcHGPDvcPza9M=
 google.golang.org/genproto v0.0.0-20230526161137-0005af68ea54/go.mod h1:zqTuNwFlFRsw5zIts5VnzLQxSRqh+CGOTVMlYbY0Eyk=
-google.golang.org/genproto/googleapis/api v0.0.0-20230525234020-1aefcd67740a/go.mod h1:ts19tUU+Z0ZShN1y3aPyq2+O3d5FUNNgT6FtOzmrNn8=
 google.golang.org/genproto/googleapis/api v0.0.0-20230525234035-dd9d682886f9 h1:m8v1xLLLzMe1m5P+gCTF8nJB9epwZQUBERm20Oy1poQ=
 google.golang.org/genproto/googleapis/api v0.0.0-20230525234035-dd9d682886f9/go.mod h1:vHYtlOoi6TsQ3Uk2yxR7NI5z8uoV+3pZtR4jmHIkRig=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234015-3fc162c6f38a/go.mod h1:xURIpW9ES5+/GZhnV6beoEtxQrnkRGIfP5VQG2tCBLc=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 h1:0nDDozoAU19Qb2HwhXadU8OcsiO/09cnTqhUtq2MEOM=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
@@ -2366,40 +1378,21 @@
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.32.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
-google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
-google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
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-google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzIUK6k=
 google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
 google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
 google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.48.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
-google.golang.org/grpc v1.49.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
-google.golang.org/grpc v1.50.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
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-google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
-google.golang.org/grpc v1.52.0/go.mod h1:pu6fVzoFb+NBYNAvQL08ic+lvB2IojljRYuun5vorUY=
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-google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
-google.golang.org/grpc v1.54.0/go.mod h1:PUSEXI6iWghWaB6lXM4knEgpJNu2qUcKfDtNci3EC2g=
 google.golang.org/grpc v1.57.0 h1:kfzNeI/klCGD2YPMUlaGNT3pxvYfga7smW3Vth8Zsiw=
 google.golang.org/grpc v1.57.0/go.mod h1:Sd+9RMTACXwmub0zcNY2c4arhtrbBYD1AUHI/dt16Mo=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -2414,9 +1407,6 @@
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.29.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
@@ -2465,41 +1455,6 @@
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
-lukechampine.com/uint128 v1.1.1/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
-lukechampine.com/uint128 v1.2.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
-modernc.org/cc/v3 v3.36.0/go.mod h1:NFUHyPn4ekoC/JHeZFfZurN6ixxawE1BnVonP/oahEI=
-modernc.org/cc/v3 v3.36.2/go.mod h1:NFUHyPn4ekoC/JHeZFfZurN6ixxawE1BnVonP/oahEI=
-modernc.org/cc/v3 v3.36.3/go.mod h1:NFUHyPn4ekoC/JHeZFfZurN6ixxawE1BnVonP/oahEI=
-modernc.org/ccgo/v3 v3.0.0-20220428102840-41399a37e894/go.mod h1:eI31LL8EwEBKPpNpA4bU1/i+sKOwOrQy8D87zWUcRZc=
-modernc.org/ccgo/v3 v3.0.0-20220430103911-bc99d88307be/go.mod h1:bwdAnOoaIt8Ax9YdWGjxWsdkPcZyRPHqrOvJxaKAKGw=
-modernc.org/ccgo/v3 v3.16.4/go.mod h1:tGtX0gE9Jn7hdZFeU88slbTh1UtCYKusWOoCJuvkWsQ=
-modernc.org/ccgo/v3 v3.16.6/go.mod h1:tGtX0gE9Jn7hdZFeU88slbTh1UtCYKusWOoCJuvkWsQ=
-modernc.org/ccgo/v3 v3.16.8/go.mod h1:zNjwkizS+fIFDrDjIAgBSCLkWbJuHF+ar3QRn+Z9aws=
-modernc.org/ccgo/v3 v3.16.9/go.mod h1:zNMzC9A9xeNUepy6KuZBbugn3c0Mc9TeiJO4lgvkJDo=
-modernc.org/ccorpus v1.11.6/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
-modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
-modernc.org/libc v0.0.0-20220428101251-2d5f3daf273b/go.mod h1:p7Mg4+koNjc8jkqwcoFBJx7tXkpj00G77X7A72jXPXA=
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-modernc.org/libc v1.16.1/go.mod h1:JjJE0eu4yeK7tab2n4S1w8tlWd9MxXLRzheaRnAKymU=
-modernc.org/libc v1.16.17/go.mod h1:hYIV5VZczAmGZAnG15Vdngn5HSF5cSkbvfz2B7GRuVU=
-modernc.org/libc v1.16.19/go.mod h1:p7Mg4+koNjc8jkqwcoFBJx7tXkpj00G77X7A72jXPXA=
-modernc.org/libc v1.17.0/go.mod h1:XsgLldpP4aWlPlsjqKRdHPqCxCjISdHfM/yeWC5GyW0=
-modernc.org/libc v1.17.1/go.mod h1:FZ23b+8LjxZs7XtFMbSzL/EhPxNbfZbErxEHc7cbD9s=
-modernc.org/mathutil v1.2.2/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
-modernc.org/mathutil v1.4.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
-modernc.org/mathutil v1.5.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
-modernc.org/memory v1.1.1/go.mod h1:/0wo5ibyrQiaoUoH7f9D8dnglAmILJ5/cxZlRECf+Nw=
-modernc.org/memory v1.2.0/go.mod h1:/0wo5ibyrQiaoUoH7f9D8dnglAmILJ5/cxZlRECf+Nw=
-modernc.org/memory v1.2.1/go.mod h1:PkUhL0Mugw21sHPeskwZW4D6VscE/GQJOnIpCnW6pSU=
-modernc.org/opt v0.1.1/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
-modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
-modernc.org/sqlite v1.18.1/go.mod h1:6ho+Gow7oX5V+OiOQ6Tr4xeqbx13UZ6t+Fw9IRUG4d4=
-modernc.org/strutil v1.1.1/go.mod h1:DE+MQQ/hjKBZS2zNInV5hhcipt5rLPWkmpbGeW5mmdw=
-modernc.org/strutil v1.1.3/go.mod h1:MEHNA7PdEnEwLvspRMtWTNnp2nnyvMfkimT1NKNAGbw=
-modernc.org/tcl v1.13.1/go.mod h1:XOLfOwzhkljL4itZkK6T72ckMgvj0BDsnKNdZVUOecw=
-modernc.org/token v1.0.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
-modernc.org/z v1.5.1/go.mod h1:eWFB510QWW5Th9YGZT81s+LwvaAs3Q2yr4sP0rmLkv8=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
diff --git a/integrate_test/service_discovery/interface/tests/integration/main_test.go b/integrate_test/service_discovery/interface/tests/integration/main_test.go
new file mode 100644
index 0000000..9239f13
--- /dev/null
+++ b/integrate_test/service_discovery/interface/tests/integration/main_test.go
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package integration
+
+import (
+	"os"
+	"testing"
+
+	"dubbo.apache.org/dubbo-go/v3/client"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/interface/proto"
+)
+
+var greetService greet.GreetService
+
+func TestMain(m *testing.M) {
+	cli, err := client.NewClient(
+		client.WithClientURL("127.0.0.1:20022"),
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	greetService, err = greet.NewGreetService(cli)
+
+	if err != nil {
+		panic(err)
+	}
+
+	os.Exit(m.Run())
+}
diff --git a/integrate_test/service_discovery/interface/tests/integration/service_discovery_test.go b/integrate_test/service_discovery/interface/tests/integration/service_discovery_test.go
new file mode 100644
index 0000000..6123950
--- /dev/null
+++ b/integrate_test/service_discovery/interface/tests/integration/service_discovery_test.go
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package integration
+
+import (
+	"context"
+	"testing"
+
+	greet "github.com/apache/dubbo-go-samples/service_discovery/interface/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGreet(t *testing.T) {
+	req := &greet.GreetRequest{Name: "hello world"}
+	ctx := context.Background()
+	reply, err := greetService.Greet(ctx, req)
+	assert.Nil(t, err)
+	assert.Equal(t, "hello world", reply.Greeting)
+
+}
diff --git a/integrate_test/service_discovery/service/tests/integration/main_test.go b/integrate_test/service_discovery/service/tests/integration/main_test.go
new file mode 100644
index 0000000..c5413cd
--- /dev/null
+++ b/integrate_test/service_discovery/service/tests/integration/main_test.go
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package integration
+
+import (
+	"os"
+	"testing"
+
+	"dubbo.apache.org/dubbo-go/v3/client"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+)
+
+var greetService greet.GreetService
+
+func TestMain(m *testing.M) {
+	cli, err := client.NewClient(
+		client.WithClientURL("127.0.0.1:20033"),
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	greetService, err = greet.NewGreetService(cli)
+
+	if err != nil {
+		panic(err)
+	}
+
+	os.Exit(m.Run())
+}
diff --git a/integrate_test/service_discovery/service/tests/integration/service_discovery_test.go b/integrate_test/service_discovery/service/tests/integration/service_discovery_test.go
new file mode 100644
index 0000000..2615ccb
--- /dev/null
+++ b/integrate_test/service_discovery/service/tests/integration/service_discovery_test.go
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package integration
+
+import (
+	"context"
+	"testing"
+
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGreet(t *testing.T) {
+	req := &greet.GreetRequest{Name: "hello world"}
+	ctx := context.Background()
+	reply, err := greetService.Greet(ctx, req)
+	assert.Nil(t, err)
+	assert.Equal(t, "hello world", reply.Greeting)
+
+}
diff --git a/service_discovery/README.md b/service_discovery/README.md
new file mode 100644
index 0000000..725ca9b
--- /dev/null
+++ b/service_discovery/README.md
@@ -0,0 +1,68 @@
+# Zookeeper as registry
+
+This example shows dubbo-go's service discovery and java-go interoperation feature  with Nacos as registry.
+
+
+> before run the code , you should Follow this instruction to install and start Nacos server.
+
+## interface level discovery
+### how to run
+#### java server <-> go client 
+```shell
+cd interface
+```
+**start java server**
+```shell
+cd java-server
+sh run.sh
+```
+
+**start go client**
+```shell
+cd go-client
+go run client.go
+
+```
+
+#### go server <-> java client 
+**start go server**
+```shell
+cd go-server
+go run server.go
+```
+**start java client**
+```shell
+cd java-client
+sh run.sh
+```
+
+
+## service level discovery
+
+```shell
+cd service
+```
+**start java server**
+```shell
+cd java-server
+sh run.sh
+```
+
+**start go client**
+```shell
+cd go-client
+go run client.go
+
+```
+
+#### go server <-> java client 
+**start go server**
+```shell
+cd go-server
+go run server.go
+```
+**start java client**
+```shell
+cd java-client
+sh run.sh
+```
\ No newline at end of file
diff --git a/service_discovery/interface/go-client/cmd/client.go b/service_discovery/interface/go-client/cmd/client.go
new file mode 100644
index 0000000..29db285
--- /dev/null
+++ b/service_discovery/interface/go-client/cmd/client.go
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+
+	"dubbo.apache.org/dubbo-go/v3"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	"dubbo.apache.org/dubbo-go/v3/registry"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+	"github.com/dubbogo/gost/log/logger"
+)
+
+func main() {
+
+	//global conception
+	//configure global configurations and common modules
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo-go-client"),
+		dubbo.WithRegistry(
+			registry.WithNacos(),
+			registry.WithAddress("127.0.0.1:8848"),
+			registry.WithRegisterInterface(),
+		),
+
+		// dubbo.WithMetadataReport(metadata.WithMetadata())),
+	)
+	if err != nil {
+		panic(err)
+	}
+	// configure the params that only client layer cares
+	cli, err := ins.NewClient()
+
+	if err != nil {
+		panic(err)
+	}
+
+	svc, err := greet.NewGreetService(cli)
+
+	if err != nil {
+		panic(err)
+	}
+
+	resp, err := svc.Greet(context.Background(), &greet.GreetRequest{Name: "hello world"})
+	if err != nil {
+		logger.Error(err)
+	}
+	logger.Infof("Greet response: %s", resp)
+}
diff --git a/service_discovery/interface/go-server/cmd/server.go b/service_discovery/interface/go-server/cmd/server.go
new file mode 100644
index 0000000..955f652
--- /dev/null
+++ b/service_discovery/interface/go-server/cmd/server.go
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+
+	"dubbo.apache.org/dubbo-go/v3"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	"dubbo.apache.org/dubbo-go/v3/protocol"
+	"dubbo.apache.org/dubbo-go/v3/registry"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+	"github.com/dubbogo/gost/log/logger"
+)
+
+type GreetTripleServer struct {
+}
+
+func (svr *GreetTripleServer) Greet(ctx context.Context, req *greet.GreetRequest) (*greet.GreetResponse, error) {
+	resp := &greet.GreetResponse{Greeting: req.Name}
+	return resp, nil
+}
+
+func (svr *GreetTripleServer) SayHello(ctx context.Context, req *greet.SayHelloRequest) (*greet.SayHelloResponse, error) {
+	resp := &greet.SayHelloResponse{Hello: req.Name}
+	return resp, nil
+}
+
+func main() {
+
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo-go-server-interface"),
+		dubbo.WithRegistry(
+			registry.WithNacos(),
+			registry.WithAddress("127.0.0.1:8848"),
+			registry.WithRegisterInterface(),
+		),
+		dubbo.WithProtocol(
+			protocol.WithTriple(),
+			protocol.WithPort(20022),
+		),
+	)
+	if err != nil {
+		panic(err)
+	}
+	srv, err := ins.NewServer()
+	if err != nil {
+		panic(err)
+	}
+	if err := greet.RegisterGreetServiceHandler(srv, &GreetTripleServer{}); err != nil {
+		panic(err)
+	}
+
+	if err := srv.Serve(); err != nil {
+		logger.Error(err)
+	}
+
+}
diff --git a/service_discovery/interface/java-client/pom.xml b/service_discovery/interface/java-client/pom.xml
new file mode 100644
index 0000000..e1ad9b6
--- /dev/null
+++ b/service_discovery/interface/java-client/pom.xml
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~  Licensed to the Apache Software Foundation (ASF) under one or more
+  ~  contributor license agreements.  See the NOTICE file distributed with
+  ~  this work for additional information regarding copyright ownership.
+  ~  The ASF licenses this file to You under the Apache License, Version 2.0
+  ~  (the "License"); you may not use this file except in compliance with
+  ~  the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~  Unless required by applicable law or agreed to in writing, software
+  ~  distributed under the License is distributed on an "AS IS" BASIS,
+  ~  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~  See the License for the specific language governing permissions and
+  ~  limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>java-client-interface</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <dubbo.version>3.2.11</dubbo.version>
+        <log4j2.version>2.20.0</log4j2.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.nacos</groupId>
+            <artifactId>nacos-client</artifactId>
+            <version>2.2.4</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>3.19.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+            <version>${dubbo.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.dubbo</groupId>
+                    <artifactId>dubbo</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>1.12.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.20</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+             <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.22.1</version>
+                <configuration>
+                    <java>
+                        <googleJavaFormat>
+                        <version>1.7</version>
+                        <style>GOOGLE</style>
+                        </googleJavaFormat>
+                        <removeUnusedImports/>
+                    </java>
+                    <lineEndings>UNIX</lineEndings>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                        <goal>apply</goal>
+                        </goals>
+                        <phase>compile</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
\ No newline at end of file
diff --git a/service_discovery/interface/java-client/run.sh b/service_discovery/interface/java-client/run.sh
new file mode 100644
index 0000000..ef8bdab
--- /dev/null
+++ b/service_discovery/interface/java-client/run.sh
@@ -0,0 +1 @@
+mvn -e clean compile exec:java -Dexec.mainClass="org.apache.dubbo.samples.Main" -Dexec.cleanupDaemonThreads=false
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/Main.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/Main.java
new file mode 100644
index 0000000..8609f1b
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/Main.java
@@ -0,0 +1,40 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples;
+
+import java.io.IOException;
+
+import org.apache.dubbo.samples.proto.GreetRequest;
+import org.apache.dubbo.samples.proto.GreetResponse;
+import org.apache.dubbo.samples.proto.GreetService;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class Main {
+
+    public static void main(String[] args) throws InterruptedException, IOException {
+        System.setProperty("dubbo.application.service-discovery.migration", "FORCE_INTERFACE");
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
+                new String[] { "/spring/dubbo.consumer.xml" });
+        GreetService greetService = (GreetService) context.getBean("GreetService");
+        GreetRequest req = GreetRequest.newBuilder().setName("Mamba").build();
+        System.out.println("dubbo ref started");
+        GreetResponse greet = greetService.greet(req);
+        System.out.println("Greeting:" + greet.getGreeting() + "!!!!!!!!!!!!");
+    }
+
+}
\ No newline at end of file
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
new file mode 100644
index 0000000..635114a
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
@@ -0,0 +1,232 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import com.google.protobuf.Message;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.stream.StreamObserver;
+import org.apache.dubbo.rpc.*;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.ServiceDescriptor;
+import org.apache.dubbo.rpc.model.StubMethodDescriptor;
+import org.apache.dubbo.rpc.model.StubServiceDescriptor;
+import org.apache.dubbo.rpc.stub.*;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.BiConsumer;
+
+public final class DubboGreetServiceTriple {
+
+    public static final String SERVICE_NAME = GreetService.SERVICE_NAME;
+
+    private static final StubServiceDescriptor serviceDescriptor = new StubServiceDescriptor(SERVICE_NAME,GreetService.class);
+
+    static {
+        org.apache.dubbo.rpc.protocol.tri.service.SchemaDescriptorRegistry.addSchemaDescriptor(SERVICE_NAME,GreetProto.getDescriptor());
+        StubSuppliers.addSupplier(SERVICE_NAME, DubboGreetServiceTriple::newStub);
+        StubSuppliers.addSupplier(GreetService.JAVA_SERVICE_NAME,  DubboGreetServiceTriple::newStub);
+        StubSuppliers.addDescriptor(SERVICE_NAME, serviceDescriptor);
+        StubSuppliers.addDescriptor(GreetService.JAVA_SERVICE_NAME, serviceDescriptor);
+    }
+
+    @SuppressWarnings("all")
+    public static GreetService newStub(Invoker<?> invoker) {
+        return new GreetServiceStub((Invoker<GreetService>)invoker);
+    }
+
+    private static final StubMethodDescriptor greetMethod = new StubMethodDescriptor("Greet",
+    GreetRequest.class, GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetAsyncMethod = new StubMethodDescriptor("Greet",
+    GreetRequest.class, CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetProxyAsyncMethod = new StubMethodDescriptor("GreetAsync",
+    GreetRequest.class, GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+    private static final StubMethodDescriptor sayHelloMethod = new StubMethodDescriptor("SayHello",
+    SayHelloRequest.class, SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloAsyncMethod = new StubMethodDescriptor("SayHello",
+    SayHelloRequest.class, CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloProxyAsyncMethod = new StubMethodDescriptor("SayHelloAsync",
+    SayHelloRequest.class, SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+
+
+
+    static{
+        serviceDescriptor.addMethod(greetMethod);
+        serviceDescriptor.addMethod(greetProxyAsyncMethod);
+        serviceDescriptor.addMethod(sayHelloMethod);
+        serviceDescriptor.addMethod(sayHelloProxyAsyncMethod);
+    }
+
+    public static class GreetServiceStub implements GreetService{
+        private final Invoker<GreetService> invoker;
+
+        public GreetServiceStub(Invoker<GreetService> invoker) {
+            this.invoker = invoker;
+        }
+
+        @Override
+        public GreetResponse greet(GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetMethod, request);
+        }
+
+        public CompletableFuture<GreetResponse> greetAsync(GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetAsyncMethod, request);
+        }
+
+        public void greet(GreetRequest request, StreamObserver<GreetResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, greetMethod , request, responseObserver);
+        }
+        @Override
+        public SayHelloResponse sayHello(SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloMethod, request);
+        }
+
+        public CompletableFuture<SayHelloResponse> sayHelloAsync(SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloAsyncMethod, request);
+        }
+
+        public void sayHello(SayHelloRequest request, StreamObserver<SayHelloResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, sayHelloMethod , request, responseObserver);
+        }
+
+
+
+    }
+
+    public static abstract class GreetServiceImplBase implements GreetService, ServerService<GreetService> {
+
+        private <T, R> BiConsumer<T, StreamObserver<R>> syncToAsync(java.util.function.Function<T, R> syncFun) {
+            return new BiConsumer<T, StreamObserver<R>>() {
+                @Override
+                public void accept(T t, StreamObserver<R> observer) {
+                    try {
+                        R ret = syncFun.apply(t);
+                        observer.onNext(ret);
+                        observer.onCompleted();
+                    } catch (Throwable e) {
+                        observer.onError(e);
+                    }
+                }
+            };
+        }
+
+        @Override
+        public CompletableFuture<GreetResponse> greetAsync(GreetRequest request){
+                return CompletableFuture.completedFuture(greet(request));
+        }
+        @Override
+        public CompletableFuture<SayHelloResponse> sayHelloAsync(SayHelloRequest request){
+                return CompletableFuture.completedFuture(sayHello(request));
+        }
+
+        /**
+        * This server stream type unary method is <b>only</b> used for generated stub to support async unary method.
+        * It will not be called if you are NOT using Dubbo3 generated triple stub and <b>DO NOT</b> implement this method.
+        */
+        public void greet(GreetRequest request, StreamObserver<GreetResponse> responseObserver){
+            greetAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+        public void sayHello(SayHelloRequest request, StreamObserver<SayHelloResponse> responseObserver){
+            sayHelloAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+
+        @Override
+        public final Invoker<GreetService> getInvoker(URL url) {
+            PathResolver pathResolver = url.getOrDefaultFrameworkModel()
+            .getExtensionLoader(PathResolver.class)
+            .getDefaultExtension();
+            Map<String,StubMethodHandler<?, ?>> handlers = new HashMap<>();
+
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/Greet" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/GreetAsync" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHello" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHelloAsync" );
+
+            BiConsumer<GreetRequest, StreamObserver<GreetResponse>> greetFunc = this::greet;
+            handlers.put(greetMethod.getMethodName(), new UnaryStubMethodHandler<>(greetFunc));
+            BiConsumer<GreetRequest, StreamObserver<GreetResponse>> greetAsyncFunc = syncToAsync(this::greet);
+            handlers.put(greetProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(greetAsyncFunc));
+            BiConsumer<SayHelloRequest, StreamObserver<SayHelloResponse>> sayHelloFunc = this::sayHello;
+            handlers.put(sayHelloMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloFunc));
+            BiConsumer<SayHelloRequest, StreamObserver<SayHelloResponse>> sayHelloAsyncFunc = syncToAsync(this::sayHello);
+            handlers.put(sayHelloProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloAsyncFunc));
+
+
+
+
+            return new StubInvoker<>(this, url, GreetService.class, handlers);
+        }
+
+
+        @Override
+        public GreetResponse greet(GreetRequest request){
+            throw unimplementedMethodException(greetMethod);
+        }
+
+        @Override
+        public SayHelloResponse sayHello(SayHelloRequest request){
+            throw unimplementedMethodException(sayHelloMethod);
+        }
+
+
+
+
+
+        @Override
+        public final ServiceDescriptor getServiceDescriptor() {
+            return serviceDescriptor;
+        }
+        private RpcException unimplementedMethodException(StubMethodDescriptor methodDescriptor) {
+            return TriRpcStatus.UNIMPLEMENTED.withDescription(String.format("Method %s is unimplemented",
+                "/" + serviceDescriptor.getInterfaceName() + "/" + methodDescriptor.getMethodName())).asException();
+        }
+    }
+
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
new file mode 100644
index 0000000..e5927b0
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
@@ -0,0 +1,90 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public final class GreetProto {
+  private GreetProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    String[] descriptorData = {
+      "\n\013greet.proto\022\036org.apache.dubbo.samples." +
+      "proto\"\034\n\014GreetRequest\022\014\n\004name\030\001 \001(\t\"!\n\rG" +
+      "reetResponse\022\020\n\010greeting\030\001 \001(\t\"\037\n\017SayHel" +
+      "loRequest\022\014\n\004name\030\001 \001(\t\"!\n\020SayHelloRespo" +
+      "nse\022\r\n\005hello\030\001 \001(\t2\347\001\n\014GreetService\022f\n\005G" +
+      "reet\022,.org.apache.dubbo.samples.proto.Gr" +
+      "eetRequest\032-.org.apache.dubbo.samples.pr" +
+      "oto.GreetResponse\"\000\022o\n\010SayHello\022/.org.ap" +
+      "ache.dubbo.samples.proto.SayHelloRequest" +
+      "\0320.org.apache.dubbo.samples.proto.SayHel" +
+      "loResponse\"\000B4\n\036org.apache.dubbo.samples" +
+      ".protoB\nGreetProtoP\001\242\002\003HLWb\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor,
+        new String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor,
+        new String[] { "Greeting", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor,
+        new String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor,
+        new String[] { "Hello", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
new file mode 100644
index 0000000..6750373
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
@@ -0,0 +1,592 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+ */
+public final class GreetRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetRequest)
+    GreetRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+
+  // Use GreetRequest.newBuilder() to construct.
+  private GreetRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GreetRequest() {
+    name_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({ "unused" })
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetRequest();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GreetRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields = com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  }
+
+  @Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            GreetRequest.class, Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile Object name_;
+
+  /**
+   * <code>string name = 1;</code>
+   * 
+   * @return The name.
+   */
+  @Override
+  public String getName() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+
+  /**
+   * <code>string name = 1;</code>
+   * 
+   * @return The bytes for name.
+   */
+  @Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = com.google.protobuf.ByteString.copyFromUtf8(
+          (String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1)
+      return true;
+    if (isInitialized == 0)
+      return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1)
+      return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof GreetRequest)) {
+      return super.equals(obj);
+    }
+    GreetRequest other = (GreetRequest) obj;
+
+    if (!getName()
+        .equals(other.getName()))
+      return false;
+    if (!unknownFields.equals(other.unknownFields))
+      return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static GreetRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+
+  public static GreetRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  public static GreetRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static GreetRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  public static GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+
+  public static GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(GreetRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder()
+        : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetRequest)
+      GreetRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              GreetRequest.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+      }
+    }
+
+    @Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @Override
+    public GreetRequest getDefaultInstanceForType() {
+      return GreetRequest.getDefaultInstance();
+    }
+
+    @Override
+    public GreetRequest build() {
+      GreetRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public GreetRequest buildPartial() {
+      GreetRequest result = new GreetRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof GreetRequest) {
+        return mergeFrom((GreetRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(GreetRequest other) {
+      if (other == GreetRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      GreetRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (GreetRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object name_ = "";
+
+    /**
+     * <code>string name = 1;</code>
+     * 
+     * @return The name.
+     */
+    public String getName() {
+      Object ref = name_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+
+    /**
+     * <code>string name = 1;</code>
+     * 
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = com.google.protobuf.ByteString.copyFromUtf8(
+            (String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    /**
+     * <code>string name = 1;</code>
+     * 
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     * <code>string name = 1;</code>
+     * 
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+
+    /**
+     * <code>string name = 1;</code>
+     * 
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  private static final GreetRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new GreetRequest();
+  }
+
+  public static GreetRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetRequest> PARSER = new com.google.protobuf.AbstractParser<GreetRequest>() {
+    @Override
+    public GreetRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetRequest> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<GreetRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public GreetRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
new file mode 100644
index 0000000..584d4a9
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
new file mode 100644
index 0000000..48a57ad
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
@@ -0,0 +1,592 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+ */
+public final class GreetResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetResponse)
+    GreetResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+
+  // Use GreetResponse.newBuilder() to construct.
+  private GreetResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GreetResponse() {
+    greeting_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({ "unused" })
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetResponse();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GreetResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields = com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            greeting_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  }
+
+  @Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            GreetResponse.class, Builder.class);
+  }
+
+  public static final int GREETING_FIELD_NUMBER = 1;
+  private volatile Object greeting_;
+
+  /**
+   * <code>string greeting = 1;</code>
+   * 
+   * @return The greeting.
+   */
+  @Override
+  public String getGreeting() {
+    Object ref = greeting_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      greeting_ = s;
+      return s;
+    }
+  }
+
+  /**
+   * <code>string greeting = 1;</code>
+   * 
+   * @return The bytes for greeting.
+   */
+  @Override
+  public com.google.protobuf.ByteString getGreetingBytes() {
+    Object ref = greeting_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = com.google.protobuf.ByteString.copyFromUtf8(
+          (String) ref);
+      greeting_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1)
+      return true;
+    if (isInitialized == 0)
+      return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, greeting_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1)
+      return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, greeting_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof GreetResponse)) {
+      return super.equals(obj);
+    }
+    GreetResponse other = (GreetResponse) obj;
+
+    if (!getGreeting()
+        .equals(other.getGreeting()))
+      return false;
+    if (!unknownFields.equals(other.unknownFields))
+      return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + GREETING_FIELD_NUMBER;
+    hash = (53 * hash) + getGreeting().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static GreetResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static GreetResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static GreetResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+
+  public static GreetResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  public static GreetResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static GreetResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  public static GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+
+  public static GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(GreetResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder()
+        : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetResponse)
+      GreetResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              GreetResponse.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+      }
+    }
+
+    @Override
+    public Builder clear() {
+      super.clear();
+      greeting_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @Override
+    public GreetResponse getDefaultInstanceForType() {
+      return GreetResponse.getDefaultInstance();
+    }
+
+    @Override
+    public GreetResponse build() {
+      GreetResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public GreetResponse buildPartial() {
+      GreetResponse result = new GreetResponse(this);
+      result.greeting_ = greeting_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof GreetResponse) {
+        return mergeFrom((GreetResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(GreetResponse other) {
+      if (other == GreetResponse.getDefaultInstance())
+        return this;
+      if (!other.getGreeting().isEmpty()) {
+        greeting_ = other.greeting_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      GreetResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (GreetResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object greeting_ = "";
+
+    /**
+     * <code>string greeting = 1;</code>
+     * 
+     * @return The greeting.
+     */
+    public String getGreeting() {
+      Object ref = greeting_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        greeting_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+
+    /**
+     * <code>string greeting = 1;</code>
+     * 
+     * @return The bytes for greeting.
+     */
+    public com.google.protobuf.ByteString getGreetingBytes() {
+      Object ref = greeting_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = com.google.protobuf.ByteString.copyFromUtf8(
+            (String) ref);
+        greeting_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    /**
+     * <code>string greeting = 1;</code>
+     * 
+     * @param value The greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreeting(
+        String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     * <code>string greeting = 1;</code>
+     * 
+     * @return This builder for chaining.
+     */
+    public Builder clearGreeting() {
+
+      greeting_ = getDefaultInstance().getGreeting();
+      onChanged();
+      return this;
+    }
+
+    /**
+     * <code>string greeting = 1;</code>
+     * 
+     * @param value The bytes for greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreetingBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  private static final GreetResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new GreetResponse();
+  }
+
+  public static GreetResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetResponse> PARSER = new com.google.protobuf.AbstractParser<GreetResponse>() {
+    @Override
+    public GreetResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetResponse> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<GreetResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public GreetResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
new file mode 100644
index 0000000..9684baa
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
+   */
+  String getGreeting();
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  com.google.protobuf.ByteString
+      getGreetingBytes();
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
new file mode 100644
index 0000000..0e53848
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
@@ -0,0 +1,44 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import java.util.concurrent.CompletableFuture;
+
+public interface GreetService extends org.apache.dubbo.rpc.model.DubboStub {
+
+    String JAVA_SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+    String SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+
+    GreetResponse greet(GreetRequest request);
+
+    CompletableFuture<GreetResponse> greetAsync(GreetRequest request);
+
+
+
+    SayHelloResponse sayHello(SayHelloRequest request);
+
+    CompletableFuture<SayHelloResponse> sayHelloAsync(SayHelloRequest request);
+
+
+
+
+
+
+
+
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
new file mode 100644
index 0000000..a9aad58
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+ */
+public final class SayHelloRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+    SayHelloRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloRequest.newBuilder() to construct.
+  private SayHelloRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloRequest() {
+    name_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloRequest();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
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+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
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+          case 10: {
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+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  }
+
+  @Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            SayHelloRequest.class, Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile Object name_;
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @Override
+  public String getName() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
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+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof SayHelloRequest)) {
+      return super.equals(obj);
+    }
+    SayHelloRequest other = (SayHelloRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(SayHelloRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+      SayHelloRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              SayHelloRequest.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @Override
+    public SayHelloRequest getDefaultInstanceForType() {
+      return SayHelloRequest.getDefaultInstance();
+    }
+
+    @Override
+    public SayHelloRequest build() {
+      SayHelloRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public SayHelloRequest buildPartial() {
+      SayHelloRequest result = new SayHelloRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof SayHelloRequest) {
+        return mergeFrom((SayHelloRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(SayHelloRequest other) {
+      if (other == SayHelloRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      SayHelloRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (SayHelloRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public String getName() {
+      Object ref = name_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  private static final SayHelloRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new SayHelloRequest();
+  }
+
+  public static SayHelloRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloRequest>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloRequest>() {
+    @Override
+    public SayHelloRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloRequest> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<SayHelloRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public SayHelloRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
new file mode 100644
index 0000000..295032b
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
new file mode 100644
index 0000000..2b24d75
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+ */
+public final class SayHelloResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+    SayHelloResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloResponse.newBuilder() to construct.
+  private SayHelloResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloResponse() {
+    hello_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloResponse();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
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+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            hello_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  }
+
+  @Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            SayHelloResponse.class, Builder.class);
+  }
+
+  public static final int HELLO_FIELD_NUMBER = 1;
+  private volatile Object hello_;
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  @Override
+  public String getHello() {
+    Object ref = hello_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      hello_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  @Override
+  public com.google.protobuf.ByteString
+      getHelloBytes() {
+    Object ref = hello_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (String) ref);
+      hello_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, hello_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, hello_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof SayHelloResponse)) {
+      return super.equals(obj);
+    }
+    SayHelloResponse other = (SayHelloResponse) obj;
+
+    if (!getHello()
+        .equals(other.getHello())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + HELLO_FIELD_NUMBER;
+    hash = (53 * hash) + getHello().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(SayHelloResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+      SayHelloResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              SayHelloResponse.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @Override
+    public Builder clear() {
+      super.clear();
+      hello_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @Override
+    public SayHelloResponse getDefaultInstanceForType() {
+      return SayHelloResponse.getDefaultInstance();
+    }
+
+    @Override
+    public SayHelloResponse build() {
+      SayHelloResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public SayHelloResponse buildPartial() {
+      SayHelloResponse result = new SayHelloResponse(this);
+      result.hello_ = hello_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof SayHelloResponse) {
+        return mergeFrom((SayHelloResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(SayHelloResponse other) {
+      if (other == SayHelloResponse.getDefaultInstance()) return this;
+      if (!other.getHello().isEmpty()) {
+        hello_ = other.hello_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      SayHelloResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (SayHelloResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object hello_ = "";
+    /**
+     * <code>string hello = 1;</code>
+     * @return The hello.
+     */
+    public String getHello() {
+      Object ref = hello_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        hello_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return The bytes for hello.
+     */
+    public com.google.protobuf.ByteString
+        getHelloBytes() {
+      Object ref = hello_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        hello_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHello(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHello() {
+      
+      hello_ = getDefaultInstance().getHello();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The bytes for hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHelloBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  private static final SayHelloResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new SayHelloResponse();
+  }
+
+  public static SayHelloResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloResponse>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloResponse>() {
+    @Override
+    public SayHelloResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloResponse> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<SayHelloResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public SayHelloResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
new file mode 100644
index 0000000..92e0894
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  String getHello();
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  com.google.protobuf.ByteString
+      getHelloBytes();
+}
diff --git a/service_discovery/interface/java-client/src/main/resources/log4j.properties b/service_discovery/interface/java-client/src/main/resources/log4j.properties
new file mode 100644
index 0000000..4aedd5d
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/resources/log4j.properties
@@ -0,0 +1,37 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You under the Apache License, Version 2.0
+#   (the "License"); you may not use this file except in compliance with
+#   the License.  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+#
+
+log.dir=logs/
+datestamp=yyyy-MM-dd/HH:mm:ss.SSS
+
+log4j.rootLogger=DEBUG, file, console
+
+log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.file.threshold=DEBUG
+log4j.appender.file.File=${log.dir}/log4j.log
+log4j.appender.file.DatePattern=-yyyyMMddHH
+log4j.appender.file.ImmediateFlush=true
+log4j.appender.file.Append=true
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.Threshold=DEBUG
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
diff --git a/service_discovery/interface/java-client/src/main/resources/spring/dubbo.consumer.xml b/service_discovery/interface/java-client/src/main/resources/spring/dubbo.consumer.xml
new file mode 100644
index 0000000..291fdc5
--- /dev/null
+++ b/service_discovery/interface/java-client/src/main/resources/spring/dubbo.consumer.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+	http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
+
+
+    <!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
+    <dubbo:application name="greet-client" />
+    <!-- 连接到哪个本地注册中心 -->
+    <dubbo:registry id="dubbogo"  address="nacos://127.0.0.1:8848" />
+<!--     dubbo.registry.address from dubbo.properties -->
+    <!-- dubbo:registry address="${dubbo.registry.address}" / -->
+    <!-- 用dubbo协议在20880端口暴露服务 -->
+    <dubbo:protocol id="tri" name="tri"  host="127.0.0.1" port="20047"/>
+    <!-- 声明需要使用的服务接口 -->
+    <dubbo:reference registry="dubbogo" check="true" id="GreetService" protocol="tri" interface="org.apache.dubbo.samples.proto.GreetService">
+        <dubbo:method name="greet" async="false"/>
+    </dubbo:reference>
+
+</beans>
\ No newline at end of file
diff --git a/service_discovery/interface/java-server/pom.xml b/service_discovery/interface/java-server/pom.xml
new file mode 100644
index 0000000..d56d041
--- /dev/null
+++ b/service_discovery/interface/java-server/pom.xml
@@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~  Licensed to the Apache Software Foundation (ASF) under one or more
+  ~  contributor license agreements.  See the NOTICE file distributed with
+  ~  this work for additional information regarding copyright ownership.
+  ~  The ASF licenses this file to You under the Apache License, Version 2.0
+  ~  (the "License"); you may not use this file except in compliance with
+  ~  the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~  Unless required by applicable law or agreed to in writing, software
+  ~  distributed under the License is distributed on an "AS IS" BASIS,
+  ~  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~  See the License for the specific language governing permissions and
+  ~  limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>java-server-interface</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <dubbo.version>3.2.11</dubbo.version>
+        <log4j2.version>2.20.0</log4j2.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>3.19.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>1.12.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.20</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+             <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.22.1</version>
+                <configuration>
+                <java>
+                    <googleJavaFormat>
+                    <version>1.7</version>
+                    <style>GOOGLE</style>
+                    </googleJavaFormat>
+                    <removeUnusedImports/>
+                </java>
+                <lineEndings>UNIX</lineEndings>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                        <goal>apply</goal>
+                        </goals>
+                        <phase>compile</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/service_discovery/interface/java-server/run.sh b/service_discovery/interface/java-server/run.sh
new file mode 100644
index 0000000..ef8bdab
--- /dev/null
+++ b/service_discovery/interface/java-server/run.sh
@@ -0,0 +1 @@
+mvn -e clean compile exec:java -Dexec.mainClass="org.apache.dubbo.samples.Main" -Dexec.cleanupDaemonThreads=false
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/Main.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/Main.java
new file mode 100644
index 0000000..e33a1ce
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/Main.java
@@ -0,0 +1,33 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import java.util.concurrent.CountDownLatch;
+
+public class Main {
+    public static void main(String[] args) throws InterruptedException {
+        System.setProperty("dubbo.application.register-mode", "interface");
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
+                new String[] { "/spring/dubbo.server.xml" });
+        context.start();
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
+    }
+}
\ No newline at end of file
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
new file mode 100644
index 0000000..c59944e
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
@@ -0,0 +1,243 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import org.apache.dubbo.common.stream.StreamObserver;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.rpc.Invoker;
+import org.apache.dubbo.rpc.PathResolver;
+import org.apache.dubbo.rpc.RpcException;
+import org.apache.dubbo.rpc.ServerService;
+import org.apache.dubbo.rpc.TriRpcStatus;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.ServiceDescriptor;
+import org.apache.dubbo.rpc.model.StubMethodDescriptor;
+import org.apache.dubbo.rpc.model.StubServiceDescriptor;
+import org.apache.dubbo.rpc.stub.BiStreamMethodHandler;
+import org.apache.dubbo.rpc.stub.ServerStreamMethodHandler;
+import org.apache.dubbo.rpc.stub.StubInvocationUtil;
+import org.apache.dubbo.rpc.stub.StubInvoker;
+import org.apache.dubbo.rpc.stub.StubMethodHandler;
+import org.apache.dubbo.rpc.stub.StubSuppliers;
+import org.apache.dubbo.rpc.stub.UnaryStubMethodHandler;
+
+import com.google.protobuf.Message;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.concurrent.CompletableFuture;
+
+public final class DubboGreetServiceTriple {
+
+    public static final String SERVICE_NAME = GreetService.SERVICE_NAME;
+
+    private static final StubServiceDescriptor serviceDescriptor = new StubServiceDescriptor(SERVICE_NAME,GreetService.class);
+
+    static {
+        org.apache.dubbo.rpc.protocol.tri.service.SchemaDescriptorRegistry.addSchemaDescriptor(SERVICE_NAME,GreetProto.getDescriptor());
+        StubSuppliers.addSupplier(SERVICE_NAME, DubboGreetServiceTriple::newStub);
+        StubSuppliers.addSupplier(GreetService.JAVA_SERVICE_NAME,  DubboGreetServiceTriple::newStub);
+        StubSuppliers.addDescriptor(SERVICE_NAME, serviceDescriptor);
+        StubSuppliers.addDescriptor(GreetService.JAVA_SERVICE_NAME, serviceDescriptor);
+    }
+
+    @SuppressWarnings("all")
+    public static GreetService newStub(Invoker<?> invoker) {
+        return new GreetServiceStub((Invoker<GreetService>)invoker);
+    }
+
+    private static final StubMethodDescriptor greetMethod = new StubMethodDescriptor("Greet",
+    org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetAsyncMethod = new StubMethodDescriptor("Greet",
+    org.apache.dubbo.samples.proto.GreetRequest.class, java.util.concurrent.CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetProxyAsyncMethod = new StubMethodDescriptor("GreetAsync",
+    org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+    private static final StubMethodDescriptor sayHelloMethod = new StubMethodDescriptor("SayHello",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloAsyncMethod = new StubMethodDescriptor("SayHello",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, java.util.concurrent.CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloProxyAsyncMethod = new StubMethodDescriptor("SayHelloAsync",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+
+
+
+    static{
+        serviceDescriptor.addMethod(greetMethod);
+        serviceDescriptor.addMethod(greetProxyAsyncMethod);
+        serviceDescriptor.addMethod(sayHelloMethod);
+        serviceDescriptor.addMethod(sayHelloProxyAsyncMethod);
+    }
+
+    public static class GreetServiceStub implements GreetService{
+        private final Invoker<GreetService> invoker;
+
+        public GreetServiceStub(Invoker<GreetService> invoker) {
+            this.invoker = invoker;
+        }
+
+        @Override
+        public org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetMethod, request);
+        }
+
+        public CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetAsyncMethod, request);
+        }
+
+        public void greet(org.apache.dubbo.samples.proto.GreetRequest request, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, greetMethod , request, responseObserver);
+        }
+        @Override
+        public org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloMethod, request);
+        }
+
+        public CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloAsyncMethod, request);
+        }
+
+        public void sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, sayHelloMethod , request, responseObserver);
+        }
+
+
+
+    }
+
+    public static abstract class GreetServiceImplBase implements GreetService, ServerService<GreetService> {
+
+        private <T, R> BiConsumer<T, StreamObserver<R>> syncToAsync(java.util.function.Function<T, R> syncFun) {
+            return new BiConsumer<T, StreamObserver<R>>() {
+                @Override
+                public void accept(T t, StreamObserver<R> observer) {
+                    try {
+                        R ret = syncFun.apply(t);
+                        observer.onNext(ret);
+                        observer.onCompleted();
+                    } catch (Throwable e) {
+                        observer.onError(e);
+                    }
+                }
+            };
+        }
+
+        @Override
+        public CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request){
+                return CompletableFuture.completedFuture(greet(request));
+        }
+        @Override
+        public CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request){
+                return CompletableFuture.completedFuture(sayHello(request));
+        }
+
+        /**
+        * This server stream type unary method is <b>only</b> used for generated stub to support async unary method.
+        * It will not be called if you are NOT using Dubbo3 generated triple stub and <b>DO NOT</b> implement this method.
+        */
+        public void greet(org.apache.dubbo.samples.proto.GreetRequest request, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse> responseObserver){
+            greetAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+        public void sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse> responseObserver){
+            sayHelloAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+
+        @Override
+        public final Invoker<GreetService> getInvoker(URL url) {
+            PathResolver pathResolver = url.getOrDefaultFrameworkModel()
+            .getExtensionLoader(PathResolver.class)
+            .getDefaultExtension();
+            Map<String,StubMethodHandler<?, ?>> handlers = new HashMap<>();
+
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/Greet" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/GreetAsync" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHello" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHelloAsync" );
+
+            BiConsumer<org.apache.dubbo.samples.proto.GreetRequest, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse>> greetFunc = this::greet;
+            handlers.put(greetMethod.getMethodName(), new UnaryStubMethodHandler<>(greetFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.GreetRequest, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse>> greetAsyncFunc = syncToAsync(this::greet);
+            handlers.put(greetProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(greetAsyncFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.SayHelloRequest, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse>> sayHelloFunc = this::sayHello;
+            handlers.put(sayHelloMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.SayHelloRequest, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse>> sayHelloAsyncFunc = syncToAsync(this::sayHello);
+            handlers.put(sayHelloProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloAsyncFunc));
+
+
+
+
+            return new StubInvoker<>(this, url, GreetService.class, handlers);
+        }
+
+
+        @Override
+        public org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request){
+            throw unimplementedMethodException(greetMethod);
+        }
+
+        @Override
+        public org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            throw unimplementedMethodException(sayHelloMethod);
+        }
+
+
+
+
+
+        @Override
+        public final ServiceDescriptor getServiceDescriptor() {
+            return serviceDescriptor;
+        }
+        private RpcException unimplementedMethodException(StubMethodDescriptor methodDescriptor) {
+            return TriRpcStatus.UNIMPLEMENTED.withDescription(String.format("Method %s is unimplemented",
+                "/" + serviceDescriptor.getInterfaceName() + "/" + methodDescriptor.getMethodName())).asException();
+        }
+    }
+
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
new file mode 100644
index 0000000..1481ba9
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
@@ -0,0 +1,90 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public final class GreetProto {
+  private GreetProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\013greet.proto\022\036org.apache.dubbo.samples." +
+      "proto\"\034\n\014GreetRequest\022\014\n\004name\030\001 \001(\t\"!\n\rG" +
+      "reetResponse\022\020\n\010greeting\030\001 \001(\t\"\037\n\017SayHel" +
+      "loRequest\022\014\n\004name\030\001 \001(\t\"!\n\020SayHelloRespo" +
+      "nse\022\r\n\005hello\030\001 \001(\t2\347\001\n\014GreetService\022f\n\005G" +
+      "reet\022,.org.apache.dubbo.samples.proto.Gr" +
+      "eetRequest\032-.org.apache.dubbo.samples.pr" +
+      "oto.GreetResponse\"\000\022o\n\010SayHello\022/.org.ap" +
+      "ache.dubbo.samples.proto.SayHelloRequest" +
+      "\0320.org.apache.dubbo.samples.proto.SayHel" +
+      "loResponse\"\000B4\n\036org.apache.dubbo.samples" +
+      ".protoB\nGreetProtoP\001\242\002\003HLWb\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor,
+        new java.lang.String[] { "Greeting", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor,
+        new java.lang.String[] { "Hello", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
new file mode 100644
index 0000000..1f7b834
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+ */
+public final class GreetRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetRequest)
+    GreetRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetRequest.newBuilder() to construct.
+  private GreetRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <code>string name = 1;</code>
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+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
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+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.GreetRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetRequest)
+      org.apache.dubbo.samples.proto.GreetRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
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+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
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+    private void maybeForceBuilderInitialization() {
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+              .alwaysUseFieldBuilders) {
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+      super.clear();
+      name_ = "";
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+      return this;
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+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetRequest getDefaultInstanceForType() {
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+    public org.apache.dubbo.samples.proto.GreetRequest build() {
+      org.apache.dubbo.samples.proto.GreetRequest result = buildPartial();
+      if (!result.isInitialized()) {
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+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
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+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
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+    public Builder setField(
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+        java.lang.Object value) {
+      return super.setField(field, value);
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.GreetRequest) {
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+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.GreetRequest other) {
+      if (other == org.apache.dubbo.samples.proto.GreetRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
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+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.GreetRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.GreetRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+        return (java.lang.String) ref;
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+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  private static final org.apache.dubbo.samples.proto.GreetRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.GreetRequest();
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GreetRequest>() {
+    @java.lang.Override
+    public GreetRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GreetRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.GreetRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
new file mode 100644
index 0000000..63353e9
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
new file mode 100644
index 0000000..afb5a0f
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+ */
+public final class GreetResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetResponse)
+    GreetResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetResponse.newBuilder() to construct.
+  private GreetResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetResponse() {
+    greeting_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
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+      while (!done) {
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+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            greeting_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
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+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.GreetResponse.class, org.apache.dubbo.samples.proto.GreetResponse.Builder.class);
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+  /**
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+   * @return The greeting.
+   */
+  @java.lang.Override
+  public java.lang.String getGreeting() {
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+      com.google.protobuf.ByteString bs = 
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+      java.lang.String s = bs.toStringUtf8();
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+      return s;
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+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  @java.lang.Override
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+    java.lang.Object ref = greeting_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      greeting_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, greeting_);
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+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, greeting_);
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+    memoizedSize = size;
+    return size;
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof org.apache.dubbo.samples.proto.GreetResponse)) {
+      return super.equals(obj);
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+    org.apache.dubbo.samples.proto.GreetResponse other = (org.apache.dubbo.samples.proto.GreetResponse) obj;
+
+    if (!getGreeting()
+        .equals(other.getGreeting())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
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+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + GREETING_FIELD_NUMBER;
+    hash = (53 * hash) + getGreeting().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.GreetResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetResponse)
+      org.apache.dubbo.samples.proto.GreetResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.GreetResponse.class, org.apache.dubbo.samples.proto.GreetResponse.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      greeting_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.GreetResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse build() {
+      org.apache.dubbo.samples.proto.GreetResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse buildPartial() {
+      org.apache.dubbo.samples.proto.GreetResponse result = new org.apache.dubbo.samples.proto.GreetResponse(this);
+      result.greeting_ = greeting_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.GreetResponse) {
+        return mergeFrom((org.apache.dubbo.samples.proto.GreetResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.GreetResponse other) {
+      if (other == org.apache.dubbo.samples.proto.GreetResponse.getDefaultInstance()) return this;
+      if (!other.getGreeting().isEmpty()) {
+        greeting_ = other.greeting_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.GreetResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.GreetResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object greeting_ = "";
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The greeting.
+     */
+    public java.lang.String getGreeting() {
+      java.lang.Object ref = greeting_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        greeting_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The bytes for greeting.
+     */
+    public com.google.protobuf.ByteString
+        getGreetingBytes() {
+      java.lang.Object ref = greeting_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        greeting_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreeting(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearGreeting() {
+      
+      greeting_ = getDefaultInstance().getGreeting();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The bytes for greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreetingBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  private static final org.apache.dubbo.samples.proto.GreetResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.GreetResponse();
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetResponse>
+      PARSER = new com.google.protobuf.AbstractParser<GreetResponse>() {
+    @java.lang.Override
+    public GreetResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GreetResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.GreetResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
new file mode 100644
index 0000000..1b0f285
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
+   */
+  java.lang.String getGreeting();
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  com.google.protobuf.ByteString
+      getGreetingBytes();
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
new file mode 100644
index 0000000..fa5b0c3
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
@@ -0,0 +1,50 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import org.apache.dubbo.common.stream.StreamObserver;
+import com.google.protobuf.Message;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.concurrent.CompletableFuture;
+
+public interface GreetService extends org.apache.dubbo.rpc.model.DubboStub {
+
+    String JAVA_SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+    String SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+
+    org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request);
+
+    CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request);
+
+
+
+    org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request);
+
+    CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request);
+
+
+
+
+
+
+
+
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
new file mode 100644
index 0000000..ea23cff
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+ */
+public final class SayHelloRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+    SayHelloRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloRequest.newBuilder() to construct.
+  private SayHelloRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof org.apache.dubbo.samples.proto.SayHelloRequest)) {
+      return super.equals(obj);
+    }
+    org.apache.dubbo.samples.proto.SayHelloRequest other = (org.apache.dubbo.samples.proto.SayHelloRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.SayHelloRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+      org.apache.dubbo.samples.proto.SayHelloRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloRequest.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.SayHelloRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest build() {
+      org.apache.dubbo.samples.proto.SayHelloRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest buildPartial() {
+      org.apache.dubbo.samples.proto.SayHelloRequest result = new org.apache.dubbo.samples.proto.SayHelloRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.SayHelloRequest) {
+        return mergeFrom((org.apache.dubbo.samples.proto.SayHelloRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.SayHelloRequest other) {
+      if (other == org.apache.dubbo.samples.proto.SayHelloRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.SayHelloRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.SayHelloRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  private static final org.apache.dubbo.samples.proto.SayHelloRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.SayHelloRequest();
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloRequest>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloRequest>() {
+    @java.lang.Override
+    public SayHelloRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SayHelloRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
new file mode 100644
index 0000000..293d833
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
new file mode 100644
index 0000000..e1426a8
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+ */
+public final class SayHelloResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+    SayHelloResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloResponse.newBuilder() to construct.
+  private SayHelloResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloResponse() {
+    hello_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            hello_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.SayHelloResponse.class, org.apache.dubbo.samples.proto.SayHelloResponse.Builder.class);
+  }
+
+  public static final int HELLO_FIELD_NUMBER = 1;
+  private volatile java.lang.Object hello_;
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  @java.lang.Override
+  public java.lang.String getHello() {
+    java.lang.Object ref = hello_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      hello_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getHelloBytes() {
+    java.lang.Object ref = hello_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      hello_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, hello_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, hello_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof org.apache.dubbo.samples.proto.SayHelloResponse)) {
+      return super.equals(obj);
+    }
+    org.apache.dubbo.samples.proto.SayHelloResponse other = (org.apache.dubbo.samples.proto.SayHelloResponse) obj;
+
+    if (!getHello()
+        .equals(other.getHello())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + HELLO_FIELD_NUMBER;
+    hash = (53 * hash) + getHello().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.SayHelloResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+      org.apache.dubbo.samples.proto.SayHelloResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.SayHelloResponse.class, org.apache.dubbo.samples.proto.SayHelloResponse.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      hello_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.SayHelloResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse build() {
+      org.apache.dubbo.samples.proto.SayHelloResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse buildPartial() {
+      org.apache.dubbo.samples.proto.SayHelloResponse result = new org.apache.dubbo.samples.proto.SayHelloResponse(this);
+      result.hello_ = hello_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.SayHelloResponse) {
+        return mergeFrom((org.apache.dubbo.samples.proto.SayHelloResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.SayHelloResponse other) {
+      if (other == org.apache.dubbo.samples.proto.SayHelloResponse.getDefaultInstance()) return this;
+      if (!other.getHello().isEmpty()) {
+        hello_ = other.hello_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.SayHelloResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.SayHelloResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object hello_ = "";
+    /**
+     * <code>string hello = 1;</code>
+     * @return The hello.
+     */
+    public java.lang.String getHello() {
+      java.lang.Object ref = hello_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        hello_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return The bytes for hello.
+     */
+    public com.google.protobuf.ByteString
+        getHelloBytes() {
+      java.lang.Object ref = hello_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        hello_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHello(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHello() {
+      
+      hello_ = getDefaultInstance().getHello();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The bytes for hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHelloBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  private static final org.apache.dubbo.samples.proto.SayHelloResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.SayHelloResponse();
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloResponse>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloResponse>() {
+    @java.lang.Override
+    public SayHelloResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SayHelloResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
new file mode 100644
index 0000000..30312ab
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  java.lang.String getHello();
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  com.google.protobuf.ByteString
+      getHelloBytes();
+}
diff --git a/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java
new file mode 100644
index 0000000..3d1198d
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples.service;
+
+import org.apache.dubbo.samples.proto.*;
+
+public class GreetServiceImpl extends DubboGreetServiceTriple.GreetServiceImplBase {
+    @Override
+    public GreetResponse greet(GreetRequest request) {
+        return GreetResponse.newBuilder()
+                .setGreeting("Man! What can i say!").build();
+
+    }
+
+    @Override
+    public SayHelloResponse sayHello(SayHelloRequest request) {
+        return SayHelloResponse.newBuilder()
+                .setHello("Hello!!!!!!!!!!!").build();
+    }
+}
diff --git a/service_discovery/interface/java-server/src/main/proto/greet.proto b/service_discovery/interface/java-server/src/main/proto/greet.proto
new file mode 100644
index 0000000..1c779a6
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/proto/greet.proto
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto3";
+
+option java_package = "org.apache.dubbo.samples.proto";
+option java_multiple_files = true;
+option java_outer_classname = "GreetProto";
+option objc_class_prefix = "HLW";
+
+package org.apache.dubbo.samples.proto;
+
+message GreetRequest {
+  string name = 1;
+}
+
+message GreetResponse {
+  string greeting = 1;
+}
+
+message SayHelloRequest{
+  string name = 1;
+}
+
+message SayHelloResponse{
+  string hello = 1;
+}
+
+service GreetService {
+  rpc Greet(GreetRequest) returns (GreetResponse) {}
+  rpc SayHello(SayHelloRequest) returns (SayHelloResponse) {}
+}
diff --git a/service_discovery/interface/java-server/src/main/resources/log4j.properties b/service_discovery/interface/java-server/src/main/resources/log4j.properties
new file mode 100644
index 0000000..110504d
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/resources/log4j.properties
@@ -0,0 +1,36 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You under the Apache License, Version 2.0
+#   (the "License"); you may not use this file except in compliance with
+#   the License.  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+#
+log.dir=logs/
+datestamp=yyyy-MM-dd/HH:mm:ss.SSS
+
+log4j.rootLogger=DEBUG, file, console
+
+log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.file.threshold=DEBUG
+log4j.appender.file.File=${log.dir}/log4j.log
+log4j.appender.file.DatePattern=-yyyyMMddHH
+log4j.appender.file.ImmediateFlush=true
+log4j.appender.file.Append=true
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.Threshold=DEBUG
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
diff --git a/service_discovery/interface/java-server/src/main/resources/spring/dubbo.server.xml b/service_discovery/interface/java-server/src/main/resources/spring/dubbo.server.xml
new file mode 100644
index 0000000..6985994
--- /dev/null
+++ b/service_discovery/interface/java-server/src/main/resources/spring/dubbo.server.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+       Licensed to the Apache Software Foundation (ASF) under one or more
+      contributor license agreements.  See the NOTICE file distributed with
+      this work for additional information regarding copyright ownership.
+      The ASF licenses this file to You under the Apache License, Version 2.0
+      (the "License"); you may not use this file except in compliance with
+      the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      See the License for the specific language governing permissions and
+      limitations under the License.
+-->
+
+
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+	http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
+
+    <!-- 应用名 -->
+    <dubbo:application name="greet-java-server-interface"/>
+    <!-- 连接到哪个本地注册中心 -->
+    <dubbo:registry id="dubbogo"  address="nacos://127.0.0.1:8848?registry-type=interface" />
+    <!-- 用dubbo协议在20880端口暴露服务 -->
+    <dubbo:protocol id="tri" name="tri" host="127.0.0.1" port="20044" />
+    <!-- 声明需要暴露的服务接口 -->
+    <dubbo:service id="aaa" registry="dubbogo" timeout="3000" interface="org.apache.dubbo.samples.proto.GreetService" ref="greetService"/>
+
+    <bean id="greetService" class="org.apache.dubbo.samples.service.GreetServiceImpl" />
+
+
+</beans>
\ No newline at end of file
diff --git a/service_discovery/interface/proto/greet.pb.go b/service_discovery/interface/proto/greet.pb.go
new file mode 100644
index 0000000..a961de2
--- /dev/null
+++ b/service_discovery/interface/proto/greet.pb.go
@@ -0,0 +1,369 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.33.0
+// 	protoc        v4.25.3
+// source: greet.proto
+
+package greet
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type GreetRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *GreetRequest) Reset() {
+	*x = GreetRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetRequest) ProtoMessage() {}
+
+func (x *GreetRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetRequest.ProtoReflect.Descriptor instead.
+func (*GreetRequest) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *GreetRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type GreetResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Greeting string `protobuf:"bytes,1,opt,name=greeting,proto3" json:"greeting,omitempty"`
+}
+
+func (x *GreetResponse) Reset() {
+	*x = GreetResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetResponse) ProtoMessage() {}
+
+func (x *GreetResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetResponse.ProtoReflect.Descriptor instead.
+func (*GreetResponse) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *GreetResponse) GetGreeting() string {
+	if x != nil {
+		return x.Greeting
+	}
+	return ""
+}
+
+type SayHelloRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *SayHelloRequest) Reset() {
+	*x = SayHelloRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SayHelloRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SayHelloRequest) ProtoMessage() {}
+
+func (x *SayHelloRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SayHelloRequest.ProtoReflect.Descriptor instead.
+func (*SayHelloRequest) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *SayHelloRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type SayHelloResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Hello string `protobuf:"bytes,1,opt,name=hello,proto3" json:"hello,omitempty"`
+}
+
+func (x *SayHelloResponse) Reset() {
+	*x = SayHelloResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SayHelloResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SayHelloResponse) ProtoMessage() {}
+
+func (x *SayHelloResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SayHelloResponse.ProtoReflect.Descriptor instead.
+func (*SayHelloResponse) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *SayHelloResponse) GetHello() string {
+	if x != nil {
+		return x.Hello
+	}
+	return ""
+}
+
+var File_greet_proto protoreflect.FileDescriptor
+
+var file_greet_proto_rawDesc = []byte{
+	0x0a, 0x0b, 0x67, 0x72, 0x65, 0x65, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1e, 0x6f,
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+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x4a, 0x5a, 0x48, 0x67, 0x69, 0x74,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x61, 0x70, 0x61, 0x63, 0x68, 0x65, 0x2f, 0x64,
+	0x75, 0x62, 0x62, 0x6f, 0x2d, 0x67, 0x6f, 0x2d, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2f,
+	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x5f, 0x64, 0x69, 0x73, 0x63, 0x6f, 0x76, 0x65, 0x72,
+	0x79, 0x2f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x3b,
+	0x67, 0x72, 0x65, 0x65, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_greet_proto_rawDescOnce sync.Once
+	file_greet_proto_rawDescData = file_greet_proto_rawDesc
+)
+
+func file_greet_proto_rawDescGZIP() []byte {
+	file_greet_proto_rawDescOnce.Do(func() {
+		file_greet_proto_rawDescData = protoimpl.X.CompressGZIP(file_greet_proto_rawDescData)
+	})
+	return file_greet_proto_rawDescData
+}
+
+var file_greet_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_greet_proto_goTypes = []interface{}{
+	(*GreetRequest)(nil),     // 0: org.apache.dubbo.samples.proto.GreetRequest
+	(*GreetResponse)(nil),    // 1: org.apache.dubbo.samples.proto.GreetResponse
+	(*SayHelloRequest)(nil),  // 2: org.apache.dubbo.samples.proto.SayHelloRequest
+	(*SayHelloResponse)(nil), // 3: org.apache.dubbo.samples.proto.SayHelloResponse
+}
+var file_greet_proto_depIdxs = []int32{
+	0, // 0: org.apache.dubbo.samples.proto.GreetService.Greet:input_type -> org.apache.dubbo.samples.proto.GreetRequest
+	2, // 1: org.apache.dubbo.samples.proto.GreetService.SayHello:input_type -> org.apache.dubbo.samples.proto.SayHelloRequest
+	1, // 2: org.apache.dubbo.samples.proto.GreetService.Greet:output_type -> org.apache.dubbo.samples.proto.GreetResponse
+	3, // 3: org.apache.dubbo.samples.proto.GreetService.SayHello:output_type -> org.apache.dubbo.samples.proto.SayHelloResponse
+	2, // [2:4] is the sub-list for method output_type
+	0, // [0:2] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_greet_proto_init() }
+func file_greet_proto_init() {
+	if File_greet_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_greet_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GreetRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GreetResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SayHelloRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SayHelloResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_greet_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_greet_proto_goTypes,
+		DependencyIndexes: file_greet_proto_depIdxs,
+		MessageInfos:      file_greet_proto_msgTypes,
+	}.Build()
+	File_greet_proto = out.File
+	file_greet_proto_rawDesc = nil
+	file_greet_proto_goTypes = nil
+	file_greet_proto_depIdxs = nil
+}
diff --git a/service_discovery/interface/proto/greet.proto b/service_discovery/interface/proto/greet.proto
new file mode 100644
index 0000000..96d2746
--- /dev/null
+++ b/service_discovery/interface/proto/greet.proto
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto3";
+
+package org.apache.dubbo.samples.proto;
+
+option go_package = "github.com/apache/dubbo-go-samples/service_discovery/service/proto;greet";
+
+
+
+message GreetRequest {
+  string name = 1;
+}
+
+message GreetResponse {
+  string greeting = 1;
+}
+
+message SayHelloRequest{
+  string name = 1;
+}
+
+message SayHelloResponse{
+  string hello = 1;
+}
+
+service GreetService {
+  rpc Greet(GreetRequest) returns (GreetResponse) {}
+  rpc SayHello(SayHelloRequest) returns (SayHelloResponse) {}
+}
+
+
diff --git a/service_discovery/interface/proto/greet.triple.go b/service_discovery/interface/proto/greet.triple.go
new file mode 100644
index 0000000..fa1dc79
--- /dev/null
+++ b/service_discovery/interface/proto/greet.triple.go
@@ -0,0 +1,149 @@
+// Code generated by protoc-gen-triple. DO NOT EDIT.
+//
+// Source: greet.proto
+package greet
+
+import (
+	"context"
+)
+
+import (
+	"dubbo.apache.org/dubbo-go/v3"
+	"dubbo.apache.org/dubbo-go/v3/client"
+	"dubbo.apache.org/dubbo-go/v3/common"
+	"dubbo.apache.org/dubbo-go/v3/common/constant"
+	"dubbo.apache.org/dubbo-go/v3/protocol/triple/triple_protocol"
+	"dubbo.apache.org/dubbo-go/v3/server"
+)
+
+// This is a compile-time assertion to ensure that this generated file and the Triple package
+// are compatible. If you get a compiler error that this constant is not defined, this code was
+// generated with a version of Triple newer than the one compiled into your binary. You can fix the
+// problem by either regenerating this code with an older version of Triple or updating the Triple
+// version compiled into your binary.
+const _ = triple_protocol.IsAtLeastVersion0_1_0
+
+const (
+	// GreetServiceName is the fully-qualified name of the GreetService service.
+	GreetServiceName = "org.apache.dubbo.samples.proto.GreetService"
+)
+
+// These constants are the fully-qualified names of the RPCs defined in this package. They're
+// exposed at runtime as procedure and as the final two segments of the HTTP route.
+//
+// Note that these are different from the fully-qualified method names used by
+// google.golang.org/protobuf/reflect/protoreflect. To convert from these constants to
+// reflection-formatted method names, remove the leading slash and convert the remaining slash to a
+// period.
+const (
+	// GreetServiceGreetProcedure is the fully-qualified name of the GreetService's Greet RPC.
+	GreetServiceGreetProcedure = "/org.apache.dubbo.samples.proto.GreetService/Greet"
+	// GreetServiceSayHelloProcedure is the fully-qualified name of the GreetService's SayHello RPC.
+	GreetServiceSayHelloProcedure = "/org.apache.dubbo.samples.proto.GreetService/SayHello"
+)
+
+var (
+	_ GreetService = (*GreetServiceImpl)(nil)
+)
+
+// GreetService is a client for the org.apache.dubbo.samples.proto.GreetService service.
+type GreetService interface {
+	Greet(ctx context.Context, req *GreetRequest, opts ...client.CallOption) (*GreetResponse, error)
+	SayHello(ctx context.Context, req *SayHelloRequest, opts ...client.CallOption) (*SayHelloResponse, error)
+}
+
+// NewGreetService constructs a client for the greet.GreetService service.
+func NewGreetService(cli *client.Client, opts ...client.ReferenceOption) (GreetService, error) {
+	conn, err := cli.DialWithInfo("org.apache.dubbo.samples.proto.GreetService", &GreetService_ClientInfo, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &GreetServiceImpl{
+		conn: conn,
+	}, nil
+}
+
+func SetConsumerService(srv common.RPCService) {
+	dubbo.SetConsumerServiceWithInfo(srv, &GreetService_ClientInfo)
+}
+
+// GreetServiceImpl implements GreetService.
+type GreetServiceImpl struct {
+	conn *client.Connection
+}
+
+func (c *GreetServiceImpl) Greet(ctx context.Context, req *GreetRequest, opts ...client.CallOption) (*GreetResponse, error) {
+	resp := new(GreetResponse)
+	if err := c.conn.CallUnary(ctx, []interface{}{req}, resp, "Greet", opts...); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *GreetServiceImpl) SayHello(ctx context.Context, req *SayHelloRequest, opts ...client.CallOption) (*SayHelloResponse, error) {
+	resp := new(SayHelloResponse)
+	if err := c.conn.CallUnary(ctx, []interface{}{req}, resp, "SayHello", opts...); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+var GreetService_ClientInfo = client.ClientInfo{
+	InterfaceName: "org.apache.dubbo.samples.proto.GreetService",
+	MethodNames:   []string{"Greet", "SayHello"},
+	ConnectionInjectFunc: func(dubboCliRaw interface{}, conn *client.Connection) {
+		dubboCli := dubboCliRaw.(*GreetServiceImpl)
+		dubboCli.conn = conn
+	},
+}
+
+// GreetServiceHandler is an implementation of the org.apache.dubbo.samples.proto.GreetService service.
+type GreetServiceHandler interface {
+	Greet(context.Context, *GreetRequest) (*GreetResponse, error)
+	SayHello(context.Context, *SayHelloRequest) (*SayHelloResponse, error)
+}
+
+func RegisterGreetServiceHandler(srv *server.Server, hdlr GreetServiceHandler, opts ...server.ServiceOption) error {
+	return srv.Register(hdlr, &GreetService_ServiceInfo, opts...)
+}
+
+func SetProviderService(srv common.RPCService) {
+	dubbo.SetProviderServiceWithInfo(srv, &GreetService_ServiceInfo)
+}
+
+var GreetService_ServiceInfo = server.ServiceInfo{
+	InterfaceName: "org.apache.dubbo.samples.proto.GreetService",
+	ServiceType:   (*GreetServiceHandler)(nil),
+	Methods: []server.MethodInfo{
+		{
+			Name: "Greet",
+			Type: constant.CallUnary,
+			ReqInitFunc: func() interface{} {
+				return new(GreetRequest)
+			},
+			MethodFunc: func(ctx context.Context, args []interface{}, handler interface{}) (interface{}, error) {
+				req := args[0].(*GreetRequest)
+				res, err := handler.(GreetServiceHandler).Greet(ctx, req)
+				if err != nil {
+					return nil, err
+				}
+				return triple_protocol.NewResponse(res), nil
+			},
+		},
+		{
+			Name: "SayHello",
+			Type: constant.CallUnary,
+			ReqInitFunc: func() interface{} {
+				return new(SayHelloRequest)
+			},
+			MethodFunc: func(ctx context.Context, args []interface{}, handler interface{}) (interface{}, error) {
+				req := args[0].(*SayHelloRequest)
+				res, err := handler.(GreetServiceHandler).SayHello(ctx, req)
+				if err != nil {
+					return nil, err
+				}
+				return triple_protocol.NewResponse(res), nil
+			},
+		},
+	},
+}
diff --git a/service_discovery/service/go-client/cmd/client.go b/service_discovery/service/go-client/cmd/client.go
new file mode 100644
index 0000000..5abcd08
--- /dev/null
+++ b/service_discovery/service/go-client/cmd/client.go
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+
+	"dubbo.apache.org/dubbo-go/v3"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	"dubbo.apache.org/dubbo-go/v3/registry"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+	"github.com/dubbogo/gost/log/logger"
+)
+
+func main() {
+
+	//global conception
+	//configure global configurations and common modules
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo-go-client"),
+		dubbo.WithRegistry(
+			registry.WithNacos(),
+			registry.WithAddress("127.0.0.1:8848"),
+		),
+	)
+	if err != nil {
+		panic(err)
+	}
+	// configure the params that only client layer cares
+	cli, err := ins.NewClient()
+
+	if err != nil {
+		panic(err)
+	}
+
+	svc, err := greet.NewGreetService(cli)
+
+	if err != nil {
+		panic(err)
+	}
+
+	resp, err := svc.Greet(context.Background(), &greet.GreetRequest{Name: "hello world"})
+	if err != nil {
+		logger.Error(err)
+	}
+	logger.Infof("Greet response: %s", resp)
+}
diff --git a/service_discovery/service/go-server/cmd/server.go b/service_discovery/service/go-server/cmd/server.go
new file mode 100644
index 0000000..523d5d2
--- /dev/null
+++ b/service_discovery/service/go-server/cmd/server.go
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+
+	"dubbo.apache.org/dubbo-go/v3"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	"dubbo.apache.org/dubbo-go/v3/protocol"
+	"dubbo.apache.org/dubbo-go/v3/registry"
+	greet "github.com/apache/dubbo-go-samples/service_discovery/service/proto"
+	"github.com/dubbogo/gost/log/logger"
+)
+
+type GreetTripleServer struct {
+}
+
+func (svr *GreetTripleServer) Greet(ctx context.Context, req *greet.GreetRequest) (*greet.GreetResponse, error) {
+	resp := &greet.GreetResponse{Greeting: req.Name}
+	return resp, nil
+}
+
+func (svr *GreetTripleServer) SayHello(ctx context.Context, req *greet.SayHelloRequest) (*greet.SayHelloResponse, error) {
+	resp := &greet.SayHelloResponse{Hello: req.Name}
+	return resp, nil
+}
+
+func main() {
+
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo-go-server"),
+		dubbo.WithRegistry(
+			registry.WithNacos(),
+			registry.WithAddress("127.0.0.1:8848"),
+		),
+		dubbo.WithProtocol(
+			protocol.WithTriple(),
+			protocol.WithPort(20033),
+		),
+	)
+	if err != nil {
+		panic(err)
+	}
+	srv, err := ins.NewServer()
+	if err != nil {
+		panic(err)
+	}
+	if err := greet.RegisterGreetServiceHandler(srv, &GreetTripleServer{}); err != nil {
+		panic(err)
+	}
+
+	if err := srv.Serve(); err != nil {
+		logger.Error(err)
+	}
+
+}
diff --git a/service_discovery/service/java-client/pom.xml b/service_discovery/service/java-client/pom.xml
new file mode 100644
index 0000000..e1ad9b6
--- /dev/null
+++ b/service_discovery/service/java-client/pom.xml
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~  Licensed to the Apache Software Foundation (ASF) under one or more
+  ~  contributor license agreements.  See the NOTICE file distributed with
+  ~  this work for additional information regarding copyright ownership.
+  ~  The ASF licenses this file to You under the Apache License, Version 2.0
+  ~  (the "License"); you may not use this file except in compliance with
+  ~  the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~  Unless required by applicable law or agreed to in writing, software
+  ~  distributed under the License is distributed on an "AS IS" BASIS,
+  ~  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~  See the License for the specific language governing permissions and
+  ~  limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>java-client-interface</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <dubbo.version>3.2.11</dubbo.version>
+        <log4j2.version>2.20.0</log4j2.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.nacos</groupId>
+            <artifactId>nacos-client</artifactId>
+            <version>2.2.4</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>3.19.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+            <version>${dubbo.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.dubbo</groupId>
+                    <artifactId>dubbo</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>1.12.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.20</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+             <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.22.1</version>
+                <configuration>
+                    <java>
+                        <googleJavaFormat>
+                        <version>1.7</version>
+                        <style>GOOGLE</style>
+                        </googleJavaFormat>
+                        <removeUnusedImports/>
+                    </java>
+                    <lineEndings>UNIX</lineEndings>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                        <goal>apply</goal>
+                        </goals>
+                        <phase>compile</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
\ No newline at end of file
diff --git a/service_discovery/service/java-client/run.sh b/service_discovery/service/java-client/run.sh
new file mode 100644
index 0000000..ef8bdab
--- /dev/null
+++ b/service_discovery/service/java-client/run.sh
@@ -0,0 +1 @@
+mvn -e clean compile exec:java -Dexec.mainClass="org.apache.dubbo.samples.Main" -Dexec.cleanupDaemonThreads=false
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/Main.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/Main.java
new file mode 100644
index 0000000..73c281c
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/Main.java
@@ -0,0 +1,40 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples;
+
+import java.io.IOException;
+
+import org.apache.dubbo.samples.proto.GreetRequest;
+import org.apache.dubbo.samples.proto.GreetResponse;
+import org.apache.dubbo.samples.proto.GreetService;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class Main {
+
+    public static void main(String[] args) throws InterruptedException, IOException {
+        System.setProperty("dubbo.application.service-discovery.migration", "APPLICATION_FIRST");
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
+                new String[] { "/spring/dubbo.consumer.xml" });
+        GreetService greetService = (GreetService) context.getBean("GreetService");
+        GreetRequest req = GreetRequest.newBuilder().setName("Mamba").build();
+        System.out.println("dubbo ref started");
+        GreetResponse greet = greetService.greet(req);
+        System.out.println("Greeting:" + greet.getGreeting() + "!!!!!!!!!!!!");
+    }
+
+}
\ No newline at end of file
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
new file mode 100644
index 0000000..c59944e
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
@@ -0,0 +1,243 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import org.apache.dubbo.common.stream.StreamObserver;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.rpc.Invoker;
+import org.apache.dubbo.rpc.PathResolver;
+import org.apache.dubbo.rpc.RpcException;
+import org.apache.dubbo.rpc.ServerService;
+import org.apache.dubbo.rpc.TriRpcStatus;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.ServiceDescriptor;
+import org.apache.dubbo.rpc.model.StubMethodDescriptor;
+import org.apache.dubbo.rpc.model.StubServiceDescriptor;
+import org.apache.dubbo.rpc.stub.BiStreamMethodHandler;
+import org.apache.dubbo.rpc.stub.ServerStreamMethodHandler;
+import org.apache.dubbo.rpc.stub.StubInvocationUtil;
+import org.apache.dubbo.rpc.stub.StubInvoker;
+import org.apache.dubbo.rpc.stub.StubMethodHandler;
+import org.apache.dubbo.rpc.stub.StubSuppliers;
+import org.apache.dubbo.rpc.stub.UnaryStubMethodHandler;
+
+import com.google.protobuf.Message;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.concurrent.CompletableFuture;
+
+public final class DubboGreetServiceTriple {
+
+    public static final String SERVICE_NAME = GreetService.SERVICE_NAME;
+
+    private static final StubServiceDescriptor serviceDescriptor = new StubServiceDescriptor(SERVICE_NAME,GreetService.class);
+
+    static {
+        org.apache.dubbo.rpc.protocol.tri.service.SchemaDescriptorRegistry.addSchemaDescriptor(SERVICE_NAME,GreetProto.getDescriptor());
+        StubSuppliers.addSupplier(SERVICE_NAME, DubboGreetServiceTriple::newStub);
+        StubSuppliers.addSupplier(GreetService.JAVA_SERVICE_NAME,  DubboGreetServiceTriple::newStub);
+        StubSuppliers.addDescriptor(SERVICE_NAME, serviceDescriptor);
+        StubSuppliers.addDescriptor(GreetService.JAVA_SERVICE_NAME, serviceDescriptor);
+    }
+
+    @SuppressWarnings("all")
+    public static GreetService newStub(Invoker<?> invoker) {
+        return new GreetServiceStub((Invoker<GreetService>)invoker);
+    }
+
+    private static final StubMethodDescriptor greetMethod = new StubMethodDescriptor("Greet",
+    org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetAsyncMethod = new StubMethodDescriptor("Greet",
+    org.apache.dubbo.samples.proto.GreetRequest.class, java.util.concurrent.CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetProxyAsyncMethod = new StubMethodDescriptor("GreetAsync",
+    org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.GreetRequest::parseFrom,
+    org.apache.dubbo.samples.proto.GreetResponse::parseFrom);
+    private static final StubMethodDescriptor sayHelloMethod = new StubMethodDescriptor("SayHello",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloAsyncMethod = new StubMethodDescriptor("SayHello",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, java.util.concurrent.CompletableFuture.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloProxyAsyncMethod = new StubMethodDescriptor("SayHelloAsync",
+    org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloResponse.class, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), org.apache.dubbo.samples.proto.SayHelloRequest::parseFrom,
+    org.apache.dubbo.samples.proto.SayHelloResponse::parseFrom);
+
+
+
+
+    static{
+        serviceDescriptor.addMethod(greetMethod);
+        serviceDescriptor.addMethod(greetProxyAsyncMethod);
+        serviceDescriptor.addMethod(sayHelloMethod);
+        serviceDescriptor.addMethod(sayHelloProxyAsyncMethod);
+    }
+
+    public static class GreetServiceStub implements GreetService{
+        private final Invoker<GreetService> invoker;
+
+        public GreetServiceStub(Invoker<GreetService> invoker) {
+            this.invoker = invoker;
+        }
+
+        @Override
+        public org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetMethod, request);
+        }
+
+        public CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetAsyncMethod, request);
+        }
+
+        public void greet(org.apache.dubbo.samples.proto.GreetRequest request, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, greetMethod , request, responseObserver);
+        }
+        @Override
+        public org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloMethod, request);
+        }
+
+        public CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloAsyncMethod, request);
+        }
+
+        public void sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, sayHelloMethod , request, responseObserver);
+        }
+
+
+
+    }
+
+    public static abstract class GreetServiceImplBase implements GreetService, ServerService<GreetService> {
+
+        private <T, R> BiConsumer<T, StreamObserver<R>> syncToAsync(java.util.function.Function<T, R> syncFun) {
+            return new BiConsumer<T, StreamObserver<R>>() {
+                @Override
+                public void accept(T t, StreamObserver<R> observer) {
+                    try {
+                        R ret = syncFun.apply(t);
+                        observer.onNext(ret);
+                        observer.onCompleted();
+                    } catch (Throwable e) {
+                        observer.onError(e);
+                    }
+                }
+            };
+        }
+
+        @Override
+        public CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request){
+                return CompletableFuture.completedFuture(greet(request));
+        }
+        @Override
+        public CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request){
+                return CompletableFuture.completedFuture(sayHello(request));
+        }
+
+        /**
+        * This server stream type unary method is <b>only</b> used for generated stub to support async unary method.
+        * It will not be called if you are NOT using Dubbo3 generated triple stub and <b>DO NOT</b> implement this method.
+        */
+        public void greet(org.apache.dubbo.samples.proto.GreetRequest request, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse> responseObserver){
+            greetAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+        public void sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse> responseObserver){
+            sayHelloAsync(request).whenComplete((r, t) -> {
+                if (t != null) {
+                    responseObserver.onError(t);
+                } else {
+                    responseObserver.onNext(r);
+                    responseObserver.onCompleted();
+                }
+            });
+        }
+
+        @Override
+        public final Invoker<GreetService> getInvoker(URL url) {
+            PathResolver pathResolver = url.getOrDefaultFrameworkModel()
+            .getExtensionLoader(PathResolver.class)
+            .getDefaultExtension();
+            Map<String,StubMethodHandler<?, ?>> handlers = new HashMap<>();
+
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/Greet" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/GreetAsync" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHello" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHelloAsync" );
+
+            BiConsumer<org.apache.dubbo.samples.proto.GreetRequest, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse>> greetFunc = this::greet;
+            handlers.put(greetMethod.getMethodName(), new UnaryStubMethodHandler<>(greetFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.GreetRequest, StreamObserver<org.apache.dubbo.samples.proto.GreetResponse>> greetAsyncFunc = syncToAsync(this::greet);
+            handlers.put(greetProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(greetAsyncFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.SayHelloRequest, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse>> sayHelloFunc = this::sayHello;
+            handlers.put(sayHelloMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloFunc));
+            BiConsumer<org.apache.dubbo.samples.proto.SayHelloRequest, StreamObserver<org.apache.dubbo.samples.proto.SayHelloResponse>> sayHelloAsyncFunc = syncToAsync(this::sayHello);
+            handlers.put(sayHelloProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloAsyncFunc));
+
+
+
+
+            return new StubInvoker<>(this, url, GreetService.class, handlers);
+        }
+
+
+        @Override
+        public org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request){
+            throw unimplementedMethodException(greetMethod);
+        }
+
+        @Override
+        public org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request){
+            throw unimplementedMethodException(sayHelloMethod);
+        }
+
+
+
+
+
+        @Override
+        public final ServiceDescriptor getServiceDescriptor() {
+            return serviceDescriptor;
+        }
+        private RpcException unimplementedMethodException(StubMethodDescriptor methodDescriptor) {
+            return TriRpcStatus.UNIMPLEMENTED.withDescription(String.format("Method %s is unimplemented",
+                "/" + serviceDescriptor.getInterfaceName() + "/" + methodDescriptor.getMethodName())).asException();
+        }
+    }
+
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
new file mode 100644
index 0000000..1481ba9
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
@@ -0,0 +1,90 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public final class GreetProto {
+  private GreetProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\013greet.proto\022\036org.apache.dubbo.samples." +
+      "proto\"\034\n\014GreetRequest\022\014\n\004name\030\001 \001(\t\"!\n\rG" +
+      "reetResponse\022\020\n\010greeting\030\001 \001(\t\"\037\n\017SayHel" +
+      "loRequest\022\014\n\004name\030\001 \001(\t\"!\n\020SayHelloRespo" +
+      "nse\022\r\n\005hello\030\001 \001(\t2\347\001\n\014GreetService\022f\n\005G" +
+      "reet\022,.org.apache.dubbo.samples.proto.Gr" +
+      "eetRequest\032-.org.apache.dubbo.samples.pr" +
+      "oto.GreetResponse\"\000\022o\n\010SayHello\022/.org.ap" +
+      "ache.dubbo.samples.proto.SayHelloRequest" +
+      "\0320.org.apache.dubbo.samples.proto.SayHel" +
+      "loResponse\"\000B4\n\036org.apache.dubbo.samples" +
+      ".protoB\nGreetProtoP\001\242\002\003HLWb\006proto3"
+    };
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+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
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+      getDescriptor().getMessageTypes().get(0);
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor,
+        new java.lang.String[] { "Greeting", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor,
+        new java.lang.String[] { "Hello", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
new file mode 100644
index 0000000..1f7b834
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+ */
+public final class GreetRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetRequest)
+    GreetRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetRequest.newBuilder() to construct.
+  private GreetRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetRequest() {
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+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
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+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
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+
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+            break;
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+            if (!parseUnknownField(
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+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetRequest.Builder.class);
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+
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+  private volatile java.lang.Object name_;
+  /**
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+   * @return The name.
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+  public com.google.protobuf.ByteString
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+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
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+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
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+    size = 0;
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+    memoizedSize = size;
+    return size;
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
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+    if (!(obj instanceof org.apache.dubbo.samples.proto.GreetRequest)) {
+      return super.equals(obj);
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+    org.apache.dubbo.samples.proto.GreetRequest other = (org.apache.dubbo.samples.proto.GreetRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
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+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
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+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.GreetRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetRequest)
+      org.apache.dubbo.samples.proto.GreetRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.GreetRequest.class, org.apache.dubbo.samples.proto.GreetRequest.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
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+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetRequest getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.GreetRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetRequest build() {
+      org.apache.dubbo.samples.proto.GreetRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetRequest buildPartial() {
+      org.apache.dubbo.samples.proto.GreetRequest result = new org.apache.dubbo.samples.proto.GreetRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.GreetRequest) {
+        return mergeFrom((org.apache.dubbo.samples.proto.GreetRequest)other);
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+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.GreetRequest other) {
+      if (other == org.apache.dubbo.samples.proto.GreetRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
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+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.GreetRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.GreetRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  private static final org.apache.dubbo.samples.proto.GreetRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.GreetRequest();
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GreetRequest>() {
+    @java.lang.Override
+    public GreetRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GreetRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.GreetRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
new file mode 100644
index 0000000..63353e9
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
new file mode 100644
index 0000000..afb5a0f
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+ */
+public final class GreetResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetResponse)
+    GreetResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetResponse.newBuilder() to construct.
+  private GreetResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetResponse() {
+    greeting_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            greeting_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.GreetResponse.class, org.apache.dubbo.samples.proto.GreetResponse.Builder.class);
+  }
+
+  public static final int GREETING_FIELD_NUMBER = 1;
+  private volatile java.lang.Object greeting_;
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
+   */
+  @java.lang.Override
+  public java.lang.String getGreeting() {
+    java.lang.Object ref = greeting_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      greeting_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getGreetingBytes() {
+    java.lang.Object ref = greeting_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      greeting_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, greeting_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, greeting_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof org.apache.dubbo.samples.proto.GreetResponse)) {
+      return super.equals(obj);
+    }
+    org.apache.dubbo.samples.proto.GreetResponse other = (org.apache.dubbo.samples.proto.GreetResponse) obj;
+
+    if (!getGreeting()
+        .equals(other.getGreeting())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + GREETING_FIELD_NUMBER;
+    hash = (53 * hash) + getGreeting().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.GreetResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.GreetResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetResponse)
+      org.apache.dubbo.samples.proto.GreetResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.GreetResponse.class, org.apache.dubbo.samples.proto.GreetResponse.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.GreetResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      greeting_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.GreetResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse build() {
+      org.apache.dubbo.samples.proto.GreetResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.GreetResponse buildPartial() {
+      org.apache.dubbo.samples.proto.GreetResponse result = new org.apache.dubbo.samples.proto.GreetResponse(this);
+      result.greeting_ = greeting_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.GreetResponse) {
+        return mergeFrom((org.apache.dubbo.samples.proto.GreetResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.GreetResponse other) {
+      if (other == org.apache.dubbo.samples.proto.GreetResponse.getDefaultInstance()) return this;
+      if (!other.getGreeting().isEmpty()) {
+        greeting_ = other.greeting_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.GreetResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.GreetResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object greeting_ = "";
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The greeting.
+     */
+    public java.lang.String getGreeting() {
+      java.lang.Object ref = greeting_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        greeting_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The bytes for greeting.
+     */
+    public com.google.protobuf.ByteString
+        getGreetingBytes() {
+      java.lang.Object ref = greeting_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        greeting_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreeting(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearGreeting() {
+      
+      greeting_ = getDefaultInstance().getGreeting();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The bytes for greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreetingBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  private static final org.apache.dubbo.samples.proto.GreetResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.GreetResponse();
+  }
+
+  public static org.apache.dubbo.samples.proto.GreetResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetResponse>
+      PARSER = new com.google.protobuf.AbstractParser<GreetResponse>() {
+    @java.lang.Override
+    public GreetResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GreetResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.GreetResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
new file mode 100644
index 0000000..1b0f285
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
+   */
+  java.lang.String getGreeting();
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  com.google.protobuf.ByteString
+      getGreetingBytes();
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
new file mode 100644
index 0000000..fa5b0c3
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
@@ -0,0 +1,50 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.dubbo.samples.proto;
+
+import org.apache.dubbo.common.stream.StreamObserver;
+import com.google.protobuf.Message;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.concurrent.CompletableFuture;
+
+public interface GreetService extends org.apache.dubbo.rpc.model.DubboStub {
+
+    String JAVA_SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+    String SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+
+    org.apache.dubbo.samples.proto.GreetResponse greet(org.apache.dubbo.samples.proto.GreetRequest request);
+
+    CompletableFuture<org.apache.dubbo.samples.proto.GreetResponse> greetAsync(org.apache.dubbo.samples.proto.GreetRequest request);
+
+
+
+    org.apache.dubbo.samples.proto.SayHelloResponse sayHello(org.apache.dubbo.samples.proto.SayHelloRequest request);
+
+    CompletableFuture<org.apache.dubbo.samples.proto.SayHelloResponse> sayHelloAsync(org.apache.dubbo.samples.proto.SayHelloRequest request);
+
+
+
+
+
+
+
+
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
new file mode 100644
index 0000000..ea23cff
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+ */
+public final class SayHelloRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+    SayHelloRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloRequest.newBuilder() to construct.
+  private SayHelloRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
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+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.SayHelloRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+      org.apache.dubbo.samples.proto.SayHelloRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
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+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.SayHelloRequest.class, org.apache.dubbo.samples.proto.SayHelloRequest.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
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+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
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+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.SayHelloRequest.getDefaultInstance();
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+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest build() {
+      org.apache.dubbo.samples.proto.SayHelloRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
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+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloRequest buildPartial() {
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+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.SayHelloRequest) {
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+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.SayHelloRequest other) {
+      if (other == org.apache.dubbo.samples.proto.SayHelloRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.SayHelloRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.SayHelloRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
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+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+        return (java.lang.String) ref;
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+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
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+                (java.lang.String) ref);
+        name_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  private static final org.apache.dubbo.samples.proto.SayHelloRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.SayHelloRequest();
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloRequest>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloRequest>() {
+    @java.lang.Override
+    public SayHelloRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SayHelloRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.SayHelloRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
new file mode 100644
index 0000000..293d833
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
new file mode 100644
index 0000000..e1426a8
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+ */
+public final class SayHelloResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+    SayHelloResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloResponse.newBuilder() to construct.
+  private SayHelloResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloResponse() {
+    hello_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            hello_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            org.apache.dubbo.samples.proto.SayHelloResponse.class, org.apache.dubbo.samples.proto.SayHelloResponse.Builder.class);
+  }
+
+  public static final int HELLO_FIELD_NUMBER = 1;
+  private volatile java.lang.Object hello_;
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  @java.lang.Override
+  public java.lang.String getHello() {
+    java.lang.Object ref = hello_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      hello_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getHelloBytes() {
+    java.lang.Object ref = hello_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      hello_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, hello_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, hello_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof org.apache.dubbo.samples.proto.SayHelloResponse)) {
+      return super.equals(obj);
+    }
+    org.apache.dubbo.samples.proto.SayHelloResponse other = (org.apache.dubbo.samples.proto.SayHelloResponse) obj;
+
+    if (!getHello()
+        .equals(other.getHello())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + HELLO_FIELD_NUMBER;
+    hash = (53 * hash) + getHello().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static org.apache.dubbo.samples.proto.SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(org.apache.dubbo.samples.proto.SayHelloResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+      org.apache.dubbo.samples.proto.SayHelloResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              org.apache.dubbo.samples.proto.SayHelloResponse.class, org.apache.dubbo.samples.proto.SayHelloResponse.Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      hello_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return org.apache.dubbo.samples.proto.GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstanceForType() {
+      return org.apache.dubbo.samples.proto.SayHelloResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse build() {
+      org.apache.dubbo.samples.proto.SayHelloResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public org.apache.dubbo.samples.proto.SayHelloResponse buildPartial() {
+      org.apache.dubbo.samples.proto.SayHelloResponse result = new org.apache.dubbo.samples.proto.SayHelloResponse(this);
+      result.hello_ = hello_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof org.apache.dubbo.samples.proto.SayHelloResponse) {
+        return mergeFrom((org.apache.dubbo.samples.proto.SayHelloResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(org.apache.dubbo.samples.proto.SayHelloResponse other) {
+      if (other == org.apache.dubbo.samples.proto.SayHelloResponse.getDefaultInstance()) return this;
+      if (!other.getHello().isEmpty()) {
+        hello_ = other.hello_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      org.apache.dubbo.samples.proto.SayHelloResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (org.apache.dubbo.samples.proto.SayHelloResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object hello_ = "";
+    /**
+     * <code>string hello = 1;</code>
+     * @return The hello.
+     */
+    public java.lang.String getHello() {
+      java.lang.Object ref = hello_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        hello_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return The bytes for hello.
+     */
+    public com.google.protobuf.ByteString
+        getHelloBytes() {
+      java.lang.Object ref = hello_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        hello_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHello(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHello() {
+      
+      hello_ = getDefaultInstance().getHello();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The bytes for hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHelloBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  private static final org.apache.dubbo.samples.proto.SayHelloResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new org.apache.dubbo.samples.proto.SayHelloResponse();
+  }
+
+  public static org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloResponse>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloResponse>() {
+    @java.lang.Override
+    public SayHelloResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SayHelloResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public org.apache.dubbo.samples.proto.SayHelloResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
new file mode 100644
index 0000000..30312ab
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  java.lang.String getHello();
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  com.google.protobuf.ByteString
+      getHelloBytes();
+}
diff --git a/service_discovery/service/java-client/src/main/proto/greet.proto b/service_discovery/service/java-client/src/main/proto/greet.proto
new file mode 100644
index 0000000..bb824ac
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/proto/greet.proto
@@ -0,0 +1,29 @@
+syntax = "proto3";
+
+option java_package = "org.apache.dubbo.samples.proto";
+option java_multiple_files = true;
+option java_outer_classname = "GreetProto";
+option objc_class_prefix = "HLW";
+
+package org.apache.dubbo.samples.proto;
+
+message GreetRequest {
+  string name = 1;
+}
+
+message GreetResponse {
+  string greeting = 1;
+}
+
+message SayHelloRequest{
+  string name = 1;
+}
+
+message SayHelloResponse{
+  string hello = 1;
+}
+
+service GreetService {
+  rpc Greet(GreetRequest) returns (GreetResponse) {}
+  rpc SayHello(SayHelloRequest) returns (SayHelloResponse) {}
+}
diff --git a/service_discovery/service/java-client/src/main/resources/dubbo.properties b/service_discovery/service/java-client/src/main/resources/dubbo.properties
new file mode 100644
index 0000000..e48e863
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/resources/dubbo.properties
@@ -0,0 +1 @@
+dubbo.application.service-discovery.migration=APPLICATION_FIRST
\ No newline at end of file
diff --git a/service_discovery/service/java-client/src/main/resources/log4j.properties b/service_discovery/service/java-client/src/main/resources/log4j.properties
new file mode 100644
index 0000000..110504d
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/resources/log4j.properties
@@ -0,0 +1,36 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You under the Apache License, Version 2.0
+#   (the "License"); you may not use this file except in compliance with
+#   the License.  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+#
+log.dir=logs/
+datestamp=yyyy-MM-dd/HH:mm:ss.SSS
+
+log4j.rootLogger=DEBUG, file, console
+
+log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.file.threshold=DEBUG
+log4j.appender.file.File=${log.dir}/log4j.log
+log4j.appender.file.DatePattern=-yyyyMMddHH
+log4j.appender.file.ImmediateFlush=true
+log4j.appender.file.Append=true
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.Threshold=DEBUG
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
diff --git a/service_discovery/service/java-client/src/main/resources/spring/dubbo.consumer.xml b/service_discovery/service/java-client/src/main/resources/spring/dubbo.consumer.xml
new file mode 100644
index 0000000..5218ef3
--- /dev/null
+++ b/service_discovery/service/java-client/src/main/resources/spring/dubbo.consumer.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+       Licensed to the Apache Software Foundation (ASF) under one or more
+      contributor license agreements.  See the NOTICE file distributed with
+      this work for additional information regarding copyright ownership.
+      The ASF licenses this file to You under the Apache License, Version 2.0
+      (the "License"); you may not use this file except in compliance with
+      the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      See the License for the specific language governing permissions and
+      limitations under the License.
+-->
+
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+	http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
+
+
+    <!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
+    <dubbo:application name="greet-client" />
+    <!-- 连接到哪个本地注册中心 -->
+    <dubbo:registry id="dubbogo"  address="nacos://127.0.0.1:8848" />
+<!--     dubbo.registry.address from dubbo.properties -->
+    <!-- dubbo:registry address="${dubbo.registry.address}" / -->
+    <!-- 用dubbo协议在20880端口暴露服务 -->
+    <dubbo:protocol id="tri" name="tri"  host="127.0.0.1" port="20057"/>
+    <!-- 声明需要使用的服务接口 -->
+    <dubbo:reference registry="dubbogo" check="true" id="GreetService" protocol="tri" interface="org.apache.dubbo.samples.proto.GreetService">
+        <dubbo:method name="greet" async="false"/>
+    </dubbo:reference>
+
+</beans>
\ No newline at end of file
diff --git a/service_discovery/service/java-server/pom.xml b/service_discovery/service/java-server/pom.xml
new file mode 100644
index 0000000..fdf6f09
--- /dev/null
+++ b/service_discovery/service/java-server/pom.xml
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~  Licensed to the Apache Software Foundation (ASF) under one or more
+  ~  contributor license agreements.  See the NOTICE file distributed with
+  ~  this work for additional information regarding copyright ownership.
+  ~  The ASF licenses this file to You under the Apache License, Version 2.0
+  ~  (the "License"); you may not use this file except in compliance with
+  ~  the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~  Unless required by applicable law or agreed to in writing, software
+  ~  distributed under the License is distributed on an "AS IS" BASIS,
+  ~  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~  See the License for the specific language governing permissions and
+  ~  limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>java-server-interface</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <dubbo.version>3.3.0-beta.1</dubbo.version>
+        <log4j2.version>2.20.0</log4j2.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+    </properties>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>3.19.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>1.12.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.20</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+                         <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.22.1</version>
+                <configuration>
+                    <java>
+                        <googleJavaFormat>
+                        <version>1.7</version>
+                        <style>GOOGLE</style>
+                        </googleJavaFormat>
+                        <removeUnusedImports/>
+                    </java>
+                    <lineEndings>UNIX</lineEndings>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                        <goal>apply</goal>
+                        </goals>
+                        <phase>compile</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+
+</project>
\ No newline at end of file
diff --git a/service_discovery/service/java-server/run.sh b/service_discovery/service/java-server/run.sh
new file mode 100644
index 0000000..ef8bdab
--- /dev/null
+++ b/service_discovery/service/java-server/run.sh
@@ -0,0 +1 @@
+mvn -e clean compile exec:java -Dexec.mainClass="org.apache.dubbo.samples.Main" -Dexec.cleanupDaemonThreads=false
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/Main.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/Main.java
new file mode 100644
index 0000000..7634ee2
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/Main.java
@@ -0,0 +1,34 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import java.io.IOException;
+import java.util.concurrent.CountDownLatch;
+
+public class Main {
+    public static void main(String[] args) throws IOException, InterruptedException {
+        System.setProperty("dubbo.application.register-mode", "instance");
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
+                new String[] { "/spring/dubbo.server.xml" });
+        context.start();
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
+    }
+}
\ No newline at end of file
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
new file mode 100644
index 0000000..618b625
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/DubboGreetServiceTriple.java
@@ -0,0 +1,195 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+    package org.apache.dubbo.samples.proto;
+
+import com.google.protobuf.Message;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.stream.StreamObserver;
+import org.apache.dubbo.rpc.*;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.ServiceDescriptor;
+import org.apache.dubbo.rpc.model.StubMethodDescriptor;
+import org.apache.dubbo.rpc.model.StubServiceDescriptor;
+import org.apache.dubbo.rpc.stub.*;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.BiConsumer;
+
+public final class DubboGreetServiceTriple {
+
+    public static final String SERVICE_NAME = GreetService.SERVICE_NAME;
+
+    private static final StubServiceDescriptor serviceDescriptor = new StubServiceDescriptor(SERVICE_NAME,GreetService.class);
+
+    static {
+        org.apache.dubbo.rpc.protocol.tri.service.SchemaDescriptorRegistry.addSchemaDescriptor(SERVICE_NAME,GreetProto.getDescriptor());
+        StubSuppliers.addSupplier(SERVICE_NAME, DubboGreetServiceTriple::newStub);
+        StubSuppliers.addSupplier(GreetService.JAVA_SERVICE_NAME,  DubboGreetServiceTriple::newStub);
+        StubSuppliers.addDescriptor(SERVICE_NAME, serviceDescriptor);
+        StubSuppliers.addDescriptor(GreetService.JAVA_SERVICE_NAME, serviceDescriptor);
+    }
+
+    @SuppressWarnings("all")
+    public static GreetService newStub(Invoker<?> invoker) {
+        return new GreetServiceStub((Invoker<GreetService>)invoker);
+    }
+
+    private static final StubMethodDescriptor greetMethod = new StubMethodDescriptor("Greet",
+    GreetRequest.class, GreetResponse.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetAsyncMethod = new StubMethodDescriptor("Greet",
+    GreetRequest.class, CompletableFuture.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor greetProxyAsyncMethod = new StubMethodDescriptor("GreetAsync",
+    GreetRequest.class, GreetResponse.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), GreetRequest::parseFrom,
+    GreetResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloMethod = new StubMethodDescriptor("SayHello",
+    SayHelloRequest.class, SayHelloResponse.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloAsyncMethod = new StubMethodDescriptor("SayHello",
+    SayHelloRequest.class, CompletableFuture.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+    private static final StubMethodDescriptor sayHelloProxyAsyncMethod = new StubMethodDescriptor("SayHelloAsync",
+    SayHelloRequest.class, SayHelloResponse.class, serviceDescriptor, MethodDescriptor.RpcType.UNARY,
+    obj -> ((Message) obj).toByteArray(), obj -> ((Message) obj).toByteArray(), SayHelloRequest::parseFrom,
+    SayHelloResponse::parseFrom);
+
+
+
+
+
+    public static class GreetServiceStub implements GreetService{
+        private final Invoker<GreetService> invoker;
+
+        public GreetServiceStub(Invoker<GreetService> invoker) {
+            this.invoker = invoker;
+        }
+
+        @Override
+        public GreetResponse greet(GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetMethod, request);
+        }
+
+        public CompletableFuture<GreetResponse> greetAsync(GreetRequest request){
+            return StubInvocationUtil.unaryCall(invoker, greetAsyncMethod, request);
+        }
+
+        @Override
+        public void greet(GreetRequest request, StreamObserver<GreetResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, greetMethod , request, responseObserver);
+        }
+        @Override
+        public SayHelloResponse sayHello(SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloMethod, request);
+        }
+
+        public CompletableFuture<SayHelloResponse> sayHelloAsync(SayHelloRequest request){
+            return StubInvocationUtil.unaryCall(invoker, sayHelloAsyncMethod, request);
+        }
+
+        @Override
+        public void sayHello(SayHelloRequest request, StreamObserver<SayHelloResponse> responseObserver){
+            StubInvocationUtil.unaryCall(invoker, sayHelloMethod , request, responseObserver);
+        }
+
+
+
+    }
+
+    public static abstract class GreetServiceImplBase implements GreetService, ServerService<GreetService> {
+
+        private <T, R> BiConsumer<T, StreamObserver<R>> syncToAsync(java.util.function.Function<T, R> syncFun) {
+            return new BiConsumer<T, StreamObserver<R>>() {
+                @Override
+                public void accept(T t, StreamObserver<R> observer) {
+                    try {
+                        R ret = syncFun.apply(t);
+                        observer.onNext(ret);
+                        observer.onCompleted();
+                    } catch (Throwable e) {
+                        observer.onError(e);
+                    }
+                }
+            };
+        }
+
+        @Override
+        public final Invoker<GreetService> getInvoker(URL url) {
+            PathResolver pathResolver = url.getOrDefaultFrameworkModel()
+            .getExtensionLoader(PathResolver.class)
+            .getDefaultExtension();
+            Map<String,StubMethodHandler<?, ?>> handlers = new HashMap<>();
+
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/Greet" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/GreetAsync" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHello" );
+            pathResolver.addNativeStub( "/" + SERVICE_NAME + "/SayHelloAsync" );
+
+            BiConsumer<GreetRequest, StreamObserver<GreetResponse>> greetFunc = this::greet;
+            handlers.put(greetMethod.getMethodName(), new UnaryStubMethodHandler<>(greetFunc));
+            BiConsumer<GreetRequest, StreamObserver<GreetResponse>> greetAsyncFunc = syncToAsync(this::greet);
+            handlers.put(greetProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(greetAsyncFunc));
+            BiConsumer<SayHelloRequest, StreamObserver<SayHelloResponse>> sayHelloFunc = this::sayHello;
+            handlers.put(sayHelloMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloFunc));
+            BiConsumer<SayHelloRequest, StreamObserver<SayHelloResponse>> sayHelloAsyncFunc = syncToAsync(this::sayHello);
+            handlers.put(sayHelloProxyAsyncMethod.getMethodName(), new UnaryStubMethodHandler<>(sayHelloAsyncFunc));
+
+
+
+
+            return new StubInvoker<>(this, url, GreetService.class, handlers);
+        }
+
+
+        @Override
+        public GreetResponse greet(GreetRequest request){
+            throw unimplementedMethodException(greetMethod);
+        }
+
+        @Override
+        public SayHelloResponse sayHello(SayHelloRequest request){
+            throw unimplementedMethodException(sayHelloMethod);
+        }
+
+
+
+
+
+        @Override
+        public final ServiceDescriptor getServiceDescriptor() {
+            return serviceDescriptor;
+        }
+        private RpcException unimplementedMethodException(StubMethodDescriptor methodDescriptor) {
+            return TriRpcStatus.UNIMPLEMENTED.withDescription(String.format("Method %s is unimplemented",
+                "/" + serviceDescriptor.getInterfaceName() + "/" + methodDescriptor.getMethodName())).asException();
+        }
+    }
+
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
new file mode 100644
index 0000000..e5927b0
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetProto.java
@@ -0,0 +1,90 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public final class GreetProto {
+  private GreetProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    String[] descriptorData = {
+      "\n\013greet.proto\022\036org.apache.dubbo.samples." +
+      "proto\"\034\n\014GreetRequest\022\014\n\004name\030\001 \001(\t\"!\n\rG" +
+      "reetResponse\022\020\n\010greeting\030\001 \001(\t\"\037\n\017SayHel" +
+      "loRequest\022\014\n\004name\030\001 \001(\t\"!\n\020SayHelloRespo" +
+      "nse\022\r\n\005hello\030\001 \001(\t2\347\001\n\014GreetService\022f\n\005G" +
+      "reet\022,.org.apache.dubbo.samples.proto.Gr" +
+      "eetRequest\032-.org.apache.dubbo.samples.pr" +
+      "oto.GreetResponse\"\000\022o\n\010SayHello\022/.org.ap" +
+      "ache.dubbo.samples.proto.SayHelloRequest" +
+      "\0320.org.apache.dubbo.samples.proto.SayHel" +
+      "loResponse\"\000B4\n\036org.apache.dubbo.samples" +
+      ".protoB\nGreetProtoP\001\242\002\003HLWb\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor,
+        new String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor,
+        new String[] { "Greeting", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor,
+        new String[] { "Name", });
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor,
+        new String[] { "Hello", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
new file mode 100644
index 0000000..8ac8797
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+ */
+public final class GreetRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetRequest)
+    GreetRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetRequest.newBuilder() to construct.
+  private GreetRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetRequest() {
+    name_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GreetRequest();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+  }
+
+  @Override
+  protected FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            GreetRequest.class, Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile Object name_;
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @Override
+  public String getName() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
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+    if (memoizedHashCode != 0) {
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+    hash = (53 * hash) + getName().hashCode();
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+  }
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
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+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
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+        .parseDelimitedWithIOException(PARSER, input);
+  }
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+  public Builder newBuilderForType() { return newBuilder(); }
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+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(GreetRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
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+
+  @Override
+  protected Builder newBuilderForType(
+      BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
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+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetRequest)
+      GreetRequestOrBuilder {
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+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetRequest_descriptor;
+    }
+
+    @Override
+    protected FieldAccessorTable
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+    private Builder() {
+      maybeForceBuilderInitialization();
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+      return this;
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+        getDescriptorForType() {
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+    public GreetRequest buildPartial() {
+      GreetRequest result = new GreetRequest(this);
+      result.name_ = name_;
+      onBuilt();
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+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
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+        com.google.protobuf.Descriptors.FieldDescriptor field,
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+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof GreetRequest) {
+        return mergeFrom((GreetRequest)other);
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+        super.mergeFrom(other);
+        return this;
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+
+    public Builder mergeFrom(GreetRequest other) {
+      if (other == GreetRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      GreetRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (GreetRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
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+    private Object name_ = "";
+    /**
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+     */
+    public String getName() {
+      Object ref = name_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        name_ = s;
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+    /**
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+        getNameBytes() {
+      Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetRequest)
+  private static final GreetRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new GreetRequest();
+  }
+
+  public static GreetRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GreetRequest>() {
+    @Override
+    public GreetRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetRequest(input, extensionRegistry);
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+
+  public static com.google.protobuf.Parser<GreetRequest> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<GreetRequest> getParserForType() {
+    return PARSER;
+  }
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+  @Override
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+  }
+
+}
+
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
new file mode 100644
index 0000000..584d4a9
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
new file mode 100644
index 0000000..b412626
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+ */
+public final class GreetResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.GreetResponse)
+    GreetResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GreetResponse.newBuilder() to construct.
+  private GreetResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GreetResponse() {
+    greeting_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
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+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GreetResponse(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
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+      throw e.setUnfinishedMessage(this);
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+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
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+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
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+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+  }
+
+  @Override
+  protected FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            GreetResponse.class, Builder.class);
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+
+  public static final int GREETING_FIELD_NUMBER = 1;
+  private volatile Object greeting_;
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
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+      com.google.protobuf.ByteString b = 
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+      greeting_ = b;
+      return b;
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+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
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+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greeting_)) {
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+    if (size != -1) return size;
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+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
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+    if (!(obj instanceof GreetResponse)) {
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+    GreetResponse other = (GreetResponse) obj;
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+    if (memoizedHashCode != 0) {
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+    hash = (19 * hash) + getDescriptor().hashCode();
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+    return PARSER.parseFrom(data);
+  }
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+    return PARSER.parseFrom(data, extensionRegistry);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+  }
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+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
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+        .parseDelimitedWithIOException(PARSER, input);
+  }
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
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+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(GreetResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.GreetResponse}
+   */
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+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.GreetResponse)
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+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @Override
+    protected FieldAccessorTable
+        internalGetFieldAccessorTable() {
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+
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+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
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+      super(parent);
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+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @Override
+    public Builder clear() {
+      super.clear();
+      greeting_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_GreetResponse_descriptor;
+    }
+
+    @Override
+    public GreetResponse getDefaultInstanceForType() {
+      return GreetResponse.getDefaultInstance();
+    }
+
+    @Override
+    public GreetResponse build() {
+      GreetResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public GreetResponse buildPartial() {
+      GreetResponse result = new GreetResponse(this);
+      result.greeting_ = greeting_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof GreetResponse) {
+        return mergeFrom((GreetResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(GreetResponse other) {
+      if (other == GreetResponse.getDefaultInstance()) return this;
+      if (!other.getGreeting().isEmpty()) {
+        greeting_ = other.greeting_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      GreetResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (GreetResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object greeting_ = "";
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The greeting.
+     */
+    public String getGreeting() {
+      Object ref = greeting_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        greeting_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return The bytes for greeting.
+     */
+    public com.google.protobuf.ByteString
+        getGreetingBytes() {
+      Object ref = greeting_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        greeting_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreeting(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearGreeting() {
+      
+      greeting_ = getDefaultInstance().getGreeting();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string greeting = 1;</code>
+     * @param value The bytes for greeting to set.
+     * @return This builder for chaining.
+     */
+    public Builder setGreetingBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      greeting_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.GreetResponse)
+  private static final GreetResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new GreetResponse();
+  }
+
+  public static GreetResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GreetResponse>
+      PARSER = new com.google.protobuf.AbstractParser<GreetResponse>() {
+    @Override
+    public GreetResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GreetResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GreetResponse> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<GreetResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public GreetResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
new file mode 100644
index 0000000..9684baa
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface GreetResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.GreetResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The greeting.
+   */
+  String getGreeting();
+  /**
+   * <code>string greeting = 1;</code>
+   * @return The bytes for greeting.
+   */
+  com.google.protobuf.ByteString
+      getGreetingBytes();
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
new file mode 100644
index 0000000..bc53a73
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/GreetService.java
@@ -0,0 +1,76 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+    package org.apache.dubbo.samples.proto;
+
+import org.apache.dubbo.common.stream.StreamObserver;
+
+import java.util.concurrent.CompletableFuture;
+
+public interface GreetService extends org.apache.dubbo.rpc.model.DubboStub {
+
+    String JAVA_SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+    String SERVICE_NAME = "org.apache.dubbo.samples.proto.GreetService";
+
+    GreetResponse greet(GreetRequest request);
+
+    default CompletableFuture<GreetResponse> greetAsync(GreetRequest request){
+        return CompletableFuture.completedFuture(greet(request));
+    }
+
+    /**
+    * This server stream type unary method is <b>only</b> used for generated stub to support async unary method.
+    * It will not be called if you are NOT using Dubbo3 generated triple stub and <b>DO NOT</b> implement this method.
+    */
+    default void greet(GreetRequest request, StreamObserver<GreetResponse> responseObserver){
+        greetAsync(request).whenComplete((r, t) -> {
+            if (t != null) {
+                responseObserver.onError(t);
+            } else {
+                responseObserver.onNext(r);
+                responseObserver.onCompleted();
+            }
+        });
+    }
+
+    SayHelloResponse sayHello(SayHelloRequest request);
+
+    default CompletableFuture<SayHelloResponse> sayHelloAsync(SayHelloRequest request){
+        return CompletableFuture.completedFuture(sayHello(request));
+    }
+
+    /**
+    * This server stream type unary method is <b>only</b> used for generated stub to support async unary method.
+    * It will not be called if you are NOT using Dubbo3 generated triple stub and <b>DO NOT</b> implement this method.
+    */
+    default void sayHello(SayHelloRequest request, StreamObserver<SayHelloResponse> responseObserver){
+        sayHelloAsync(request).whenComplete((r, t) -> {
+            if (t != null) {
+                responseObserver.onError(t);
+            } else {
+                responseObserver.onNext(r);
+                responseObserver.onCompleted();
+            }
+        });
+    }
+
+
+
+
+
+
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
new file mode 100644
index 0000000..914c628
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequest.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+ */
+public final class SayHelloRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+    SayHelloRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloRequest.newBuilder() to construct.
+  private SayHelloRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloRequest() {
+    name_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloRequest();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+  }
+
+  @Override
+  protected FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            SayHelloRequest.class, Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile Object name_;
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @Override
+  public String getName() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    Object ref = name_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof SayHelloRequest)) {
+      return super.equals(obj);
+    }
+    SayHelloRequest other = (SayHelloRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(SayHelloRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloRequest)
+      SayHelloRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @Override
+    protected FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              SayHelloRequest.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloRequest_descriptor;
+    }
+
+    @Override
+    public SayHelloRequest getDefaultInstanceForType() {
+      return SayHelloRequest.getDefaultInstance();
+    }
+
+    @Override
+    public SayHelloRequest build() {
+      SayHelloRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public SayHelloRequest buildPartial() {
+      SayHelloRequest result = new SayHelloRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof SayHelloRequest) {
+        return mergeFrom((SayHelloRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(SayHelloRequest other) {
+      if (other == SayHelloRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      SayHelloRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (SayHelloRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public String getName() {
+      Object ref = name_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloRequest)
+  private static final SayHelloRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new SayHelloRequest();
+  }
+
+  public static SayHelloRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloRequest>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloRequest>() {
+    @Override
+    public SayHelloRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloRequest> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<SayHelloRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public SayHelloRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
new file mode 100644
index 0000000..295032b
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloRequestOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
new file mode 100644
index 0000000..b331f54
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponse.java
@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+/**
+ * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+ */
+public final class SayHelloResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+    SayHelloResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SayHelloResponse.newBuilder() to construct.
+  private SayHelloResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SayHelloResponse() {
+    hello_ = "";
+  }
+
+  @Override
+  @SuppressWarnings({"unused"})
+  protected Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SayHelloResponse();
+  }
+
+  @Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SayHelloResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            String s = input.readStringRequireUtf8();
+
+            hello_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+  }
+
+  @Override
+  protected FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            SayHelloResponse.class, Builder.class);
+  }
+
+  public static final int HELLO_FIELD_NUMBER = 1;
+  private volatile Object hello_;
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  @Override
+  public String getHello() {
+    Object ref = hello_;
+    if (ref instanceof String) {
+      return (String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      String s = bs.toStringUtf8();
+      hello_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  @Override
+  public com.google.protobuf.ByteString
+      getHelloBytes() {
+    Object ref = hello_;
+    if (ref instanceof String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (String) ref);
+      hello_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, hello_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(hello_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, hello_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof SayHelloResponse)) {
+      return super.equals(obj);
+    }
+    SayHelloResponse other = (SayHelloResponse) obj;
+
+    if (!getHello()
+        .equals(other.getHello())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + HELLO_FIELD_NUMBER;
+    hash = (53 * hash) + getHello().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static SayHelloResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static SayHelloResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(SayHelloResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @Override
+  protected Builder newBuilderForType(
+      BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code org.apache.dubbo.samples.proto.SayHelloResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:org.apache.dubbo.samples.proto.SayHelloResponse)
+      SayHelloResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @Override
+    protected FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              SayHelloResponse.class, Builder.class);
+    }
+
+    // Construct using org.apache.dubbo.samples.proto.SayHelloResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @Override
+    public Builder clear() {
+      super.clear();
+      hello_ = "";
+
+      return this;
+    }
+
+    @Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return GreetProto.internal_static_org_apache_dubbo_samples_proto_SayHelloResponse_descriptor;
+    }
+
+    @Override
+    public SayHelloResponse getDefaultInstanceForType() {
+      return SayHelloResponse.getDefaultInstance();
+    }
+
+    @Override
+    public SayHelloResponse build() {
+      SayHelloResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @Override
+    public SayHelloResponse buildPartial() {
+      SayHelloResponse result = new SayHelloResponse(this);
+      result.hello_ = hello_;
+      onBuilt();
+      return result;
+    }
+
+    @Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.setField(field, value);
+    }
+    @Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof SayHelloResponse) {
+        return mergeFrom((SayHelloResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(SayHelloResponse other) {
+      if (other == SayHelloResponse.getDefaultInstance()) return this;
+      if (!other.getHello().isEmpty()) {
+        hello_ = other.hello_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      SayHelloResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (SayHelloResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private Object hello_ = "";
+    /**
+     * <code>string hello = 1;</code>
+     * @return The hello.
+     */
+    public String getHello() {
+      Object ref = hello_;
+      if (!(ref instanceof String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        hello_ = s;
+        return s;
+      } else {
+        return (String) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return The bytes for hello.
+     */
+    public com.google.protobuf.ByteString
+        getHelloBytes() {
+      Object ref = hello_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (String) ref);
+        hello_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHello(
+        String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHello() {
+      
+      hello_ = getDefaultInstance().getHello();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string hello = 1;</code>
+     * @param value The bytes for hello to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHelloBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      hello_ = value;
+      onChanged();
+      return this;
+    }
+    @Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:org.apache.dubbo.samples.proto.SayHelloResponse)
+  private static final SayHelloResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new SayHelloResponse();
+  }
+
+  public static SayHelloResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SayHelloResponse>
+      PARSER = new com.google.protobuf.AbstractParser<SayHelloResponse>() {
+    @Override
+    public SayHelloResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SayHelloResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SayHelloResponse> parser() {
+    return PARSER;
+  }
+
+  @Override
+  public com.google.protobuf.Parser<SayHelloResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @Override
+  public SayHelloResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
new file mode 100644
index 0000000..92e0894
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/proto/SayHelloResponseOrBuilder.java
@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greet.proto
+
+package org.apache.dubbo.samples.proto;
+
+public interface SayHelloResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:org.apache.dubbo.samples.proto.SayHelloResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string hello = 1;</code>
+   * @return The hello.
+   */
+  String getHello();
+  /**
+   * <code>string hello = 1;</code>
+   * @return The bytes for hello.
+   */
+  com.google.protobuf.ByteString
+      getHelloBytes();
+}
diff --git a/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java
new file mode 100644
index 0000000..3d1198d
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/java/org/apache/dubbo/samples/service/GreetServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.dubbo.samples.service;
+
+import org.apache.dubbo.samples.proto.*;
+
+public class GreetServiceImpl extends DubboGreetServiceTriple.GreetServiceImplBase {
+    @Override
+    public GreetResponse greet(GreetRequest request) {
+        return GreetResponse.newBuilder()
+                .setGreeting("Man! What can i say!").build();
+
+    }
+
+    @Override
+    public SayHelloResponse sayHello(SayHelloRequest request) {
+        return SayHelloResponse.newBuilder()
+                .setHello("Hello!!!!!!!!!!!").build();
+    }
+}
diff --git a/service_discovery/service/java-server/src/main/proto/greet.proto b/service_discovery/service/java-server/src/main/proto/greet.proto
new file mode 100644
index 0000000..e66deb9
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/proto/greet.proto
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+syntax = "proto3";
+
+option java_package = "org.apache.dubbo.samples.proto";
+option java_multiple_files = true;
+option java_outer_classname = "GreetProto";
+option objc_class_prefix = "HLW";
+
+package org.apache.dubbo.samples.proto;
+
+message GreetRequest {
+  string name = 1;
+}
+
+message GreetResponse {
+  string greeting = 1;
+}
+
+message SayHelloRequest{
+  string name = 1;
+}
+
+message SayHelloResponse{
+  string hello = 1;
+}
+
+service GreetService {
+  rpc Greet(GreetRequest) returns (GreetResponse) {}
+  rpc SayHello(SayHelloRequest) returns (SayHelloResponse) {}
+}
diff --git a/service_discovery/service/java-server/src/main/resources/log4j.properties b/service_discovery/service/java-server/src/main/resources/log4j.properties
new file mode 100644
index 0000000..110504d
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/resources/log4j.properties
@@ -0,0 +1,36 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You under the Apache License, Version 2.0
+#   (the "License"); you may not use this file except in compliance with
+#   the License.  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+#
+log.dir=logs/
+datestamp=yyyy-MM-dd/HH:mm:ss.SSS
+
+log4j.rootLogger=DEBUG, file, console
+
+log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.file.threshold=DEBUG
+log4j.appender.file.File=${log.dir}/log4j.log
+log4j.appender.file.DatePattern=-yyyyMMddHH
+log4j.appender.file.ImmediateFlush=true
+log4j.appender.file.Append=true
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.Threshold=DEBUG
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{${datestamp}} %5p: %l - %m%n
diff --git a/service_discovery/service/java-server/src/main/resources/spring/dubbo.server.xml b/service_discovery/service/java-server/src/main/resources/spring/dubbo.server.xml
new file mode 100644
index 0000000..472be44
--- /dev/null
+++ b/service_discovery/service/java-server/src/main/resources/spring/dubbo.server.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+       Licensed to the Apache Software Foundation (ASF) under one or more
+      contributor license agreements.  See the NOTICE file distributed with
+      this work for additional information regarding copyright ownership.
+      The ASF licenses this file to You under the Apache License, Version 2.0
+      (the "License"); you may not use this file except in compliance with
+      the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      See the License for the specific language governing permissions and
+      limitations under the License.
+-->
+
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+	http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
+
+    <!-- 应用名 -->
+    <dubbo:application name="greet-java-server"/>
+    <!-- 连接到哪个本地注册中心 -->
+    <dubbo:registry id="dubbogo"  address="nacos://127.0.0.1:8848?registry-type=service" />
+    <!-- 用dubbo协议在20880端口暴露服务 -->
+    <dubbo:protocol id="tri" name="tri" host="127.0.0.1" port="20055" />
+    <!-- 声明需要暴露的服务接口 -->
+    <dubbo:service id="aaa" registry="dubbogo" timeout="3000" interface="org.apache.dubbo.samples.proto.GreetService" ref="greetService"/>
+
+    <bean id="greetService" class="org.apache.dubbo.samples.service.GreetServiceImpl" />
+
+
+</beans>
\ No newline at end of file
diff --git a/service_discovery/service/proto/greet.pb.go b/service_discovery/service/proto/greet.pb.go
new file mode 100644
index 0000000..a961de2
--- /dev/null
+++ b/service_discovery/service/proto/greet.pb.go
@@ -0,0 +1,369 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.33.0
+// 	protoc        v4.25.3
+// source: greet.proto
+
+package greet
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type GreetRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *GreetRequest) Reset() {
+	*x = GreetRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetRequest) ProtoMessage() {}
+
+func (x *GreetRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetRequest.ProtoReflect.Descriptor instead.
+func (*GreetRequest) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *GreetRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type GreetResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Greeting string `protobuf:"bytes,1,opt,name=greeting,proto3" json:"greeting,omitempty"`
+}
+
+func (x *GreetResponse) Reset() {
+	*x = GreetResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetResponse) ProtoMessage() {}
+
+func (x *GreetResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetResponse.ProtoReflect.Descriptor instead.
+func (*GreetResponse) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *GreetResponse) GetGreeting() string {
+	if x != nil {
+		return x.Greeting
+	}
+	return ""
+}
+
+type SayHelloRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *SayHelloRequest) Reset() {
+	*x = SayHelloRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SayHelloRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SayHelloRequest) ProtoMessage() {}
+
+func (x *SayHelloRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SayHelloRequest.ProtoReflect.Descriptor instead.
+func (*SayHelloRequest) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *SayHelloRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type SayHelloResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Hello string `protobuf:"bytes,1,opt,name=hello,proto3" json:"hello,omitempty"`
+}
+
+func (x *SayHelloResponse) Reset() {
+	*x = SayHelloResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greet_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SayHelloResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SayHelloResponse) ProtoMessage() {}
+
+func (x *SayHelloResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_greet_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SayHelloResponse.ProtoReflect.Descriptor instead.
+func (*SayHelloResponse) Descriptor() ([]byte, []int) {
+	return file_greet_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *SayHelloResponse) GetHello() string {
+	if x != nil {
+		return x.Hello
+	}
+	return ""
+}
+
+var File_greet_proto protoreflect.FileDescriptor
+
+var file_greet_proto_rawDesc = []byte{
+	0x0a, 0x0b, 0x67, 0x72, 0x65, 0x65, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1e, 0x6f,
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+	0x65, 0x6c, 0x6c, 0x6f, 0x12, 0x2f, 0x2e, 0x6f, 0x72, 0x67, 0x2e, 0x61, 0x70, 0x61, 0x63, 0x68,
+	0x65, 0x2e, 0x64, 0x75, 0x62, 0x62, 0x6f, 0x2e, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2e,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x53, 0x61, 0x79, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x30, 0x2e, 0x6f, 0x72, 0x67, 0x2e, 0x61, 0x70, 0x61, 0x63,
+	0x68, 0x65, 0x2e, 0x64, 0x75, 0x62, 0x62, 0x6f, 0x2e, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x53, 0x61, 0x79, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x4a, 0x5a, 0x48, 0x67, 0x69, 0x74,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x61, 0x70, 0x61, 0x63, 0x68, 0x65, 0x2f, 0x64,
+	0x75, 0x62, 0x62, 0x6f, 0x2d, 0x67, 0x6f, 0x2d, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2f,
+	0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x5f, 0x64, 0x69, 0x73, 0x63, 0x6f, 0x76, 0x65, 0x72,
+	0x79, 0x2f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x3b,
+	0x67, 0x72, 0x65, 0x65, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_greet_proto_rawDescOnce sync.Once
+	file_greet_proto_rawDescData = file_greet_proto_rawDesc
+)
+
+func file_greet_proto_rawDescGZIP() []byte {
+	file_greet_proto_rawDescOnce.Do(func() {
+		file_greet_proto_rawDescData = protoimpl.X.CompressGZIP(file_greet_proto_rawDescData)
+	})
+	return file_greet_proto_rawDescData
+}
+
+var file_greet_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_greet_proto_goTypes = []interface{}{
+	(*GreetRequest)(nil),     // 0: org.apache.dubbo.samples.proto.GreetRequest
+	(*GreetResponse)(nil),    // 1: org.apache.dubbo.samples.proto.GreetResponse
+	(*SayHelloRequest)(nil),  // 2: org.apache.dubbo.samples.proto.SayHelloRequest
+	(*SayHelloResponse)(nil), // 3: org.apache.dubbo.samples.proto.SayHelloResponse
+}
+var file_greet_proto_depIdxs = []int32{
+	0, // 0: org.apache.dubbo.samples.proto.GreetService.Greet:input_type -> org.apache.dubbo.samples.proto.GreetRequest
+	2, // 1: org.apache.dubbo.samples.proto.GreetService.SayHello:input_type -> org.apache.dubbo.samples.proto.SayHelloRequest
+	1, // 2: org.apache.dubbo.samples.proto.GreetService.Greet:output_type -> org.apache.dubbo.samples.proto.GreetResponse
+	3, // 3: org.apache.dubbo.samples.proto.GreetService.SayHello:output_type -> org.apache.dubbo.samples.proto.SayHelloResponse
+	2, // [2:4] is the sub-list for method output_type
+	0, // [0:2] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_greet_proto_init() }
+func file_greet_proto_init() {
+	if File_greet_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_greet_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GreetRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GreetResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SayHelloRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_greet_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SayHelloResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_greet_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_greet_proto_goTypes,
+		DependencyIndexes: file_greet_proto_depIdxs,
+		MessageInfos:      file_greet_proto_msgTypes,
+	}.Build()
+	File_greet_proto = out.File
+	file_greet_proto_rawDesc = nil
+	file_greet_proto_goTypes = nil
+	file_greet_proto_depIdxs = nil
+}
diff --git a/service_discovery/service/proto/greet.proto b/service_discovery/service/proto/greet.proto
new file mode 100644
index 0000000..96d2746
--- /dev/null
+++ b/service_discovery/service/proto/greet.proto
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto3";
+
+package org.apache.dubbo.samples.proto;
+
+option go_package = "github.com/apache/dubbo-go-samples/service_discovery/service/proto;greet";
+
+
+
+message GreetRequest {
+  string name = 1;
+}
+
+message GreetResponse {
+  string greeting = 1;
+}
+
+message SayHelloRequest{
+  string name = 1;
+}
+
+message SayHelloResponse{
+  string hello = 1;
+}
+
+service GreetService {
+  rpc Greet(GreetRequest) returns (GreetResponse) {}
+  rpc SayHello(SayHelloRequest) returns (SayHelloResponse) {}
+}
+
+
diff --git a/service_discovery/service/proto/greet.triple.go b/service_discovery/service/proto/greet.triple.go
new file mode 100644
index 0000000..fa1dc79
--- /dev/null
+++ b/service_discovery/service/proto/greet.triple.go
@@ -0,0 +1,149 @@
+// Code generated by protoc-gen-triple. DO NOT EDIT.
+//
+// Source: greet.proto
+package greet
+
+import (
+	"context"
+)
+
+import (
+	"dubbo.apache.org/dubbo-go/v3"
+	"dubbo.apache.org/dubbo-go/v3/client"
+	"dubbo.apache.org/dubbo-go/v3/common"
+	"dubbo.apache.org/dubbo-go/v3/common/constant"
+	"dubbo.apache.org/dubbo-go/v3/protocol/triple/triple_protocol"
+	"dubbo.apache.org/dubbo-go/v3/server"
+)
+
+// This is a compile-time assertion to ensure that this generated file and the Triple package
+// are compatible. If you get a compiler error that this constant is not defined, this code was
+// generated with a version of Triple newer than the one compiled into your binary. You can fix the
+// problem by either regenerating this code with an older version of Triple or updating the Triple
+// version compiled into your binary.
+const _ = triple_protocol.IsAtLeastVersion0_1_0
+
+const (
+	// GreetServiceName is the fully-qualified name of the GreetService service.
+	GreetServiceName = "org.apache.dubbo.samples.proto.GreetService"
+)
+
+// These constants are the fully-qualified names of the RPCs defined in this package. They're
+// exposed at runtime as procedure and as the final two segments of the HTTP route.
+//
+// Note that these are different from the fully-qualified method names used by
+// google.golang.org/protobuf/reflect/protoreflect. To convert from these constants to
+// reflection-formatted method names, remove the leading slash and convert the remaining slash to a
+// period.
+const (
+	// GreetServiceGreetProcedure is the fully-qualified name of the GreetService's Greet RPC.
+	GreetServiceGreetProcedure = "/org.apache.dubbo.samples.proto.GreetService/Greet"
+	// GreetServiceSayHelloProcedure is the fully-qualified name of the GreetService's SayHello RPC.
+	GreetServiceSayHelloProcedure = "/org.apache.dubbo.samples.proto.GreetService/SayHello"
+)
+
+var (
+	_ GreetService = (*GreetServiceImpl)(nil)
+)
+
+// GreetService is a client for the org.apache.dubbo.samples.proto.GreetService service.
+type GreetService interface {
+	Greet(ctx context.Context, req *GreetRequest, opts ...client.CallOption) (*GreetResponse, error)
+	SayHello(ctx context.Context, req *SayHelloRequest, opts ...client.CallOption) (*SayHelloResponse, error)
+}
+
+// NewGreetService constructs a client for the greet.GreetService service.
+func NewGreetService(cli *client.Client, opts ...client.ReferenceOption) (GreetService, error) {
+	conn, err := cli.DialWithInfo("org.apache.dubbo.samples.proto.GreetService", &GreetService_ClientInfo, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &GreetServiceImpl{
+		conn: conn,
+	}, nil
+}
+
+func SetConsumerService(srv common.RPCService) {
+	dubbo.SetConsumerServiceWithInfo(srv, &GreetService_ClientInfo)
+}
+
+// GreetServiceImpl implements GreetService.
+type GreetServiceImpl struct {
+	conn *client.Connection
+}
+
+func (c *GreetServiceImpl) Greet(ctx context.Context, req *GreetRequest, opts ...client.CallOption) (*GreetResponse, error) {
+	resp := new(GreetResponse)
+	if err := c.conn.CallUnary(ctx, []interface{}{req}, resp, "Greet", opts...); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (c *GreetServiceImpl) SayHello(ctx context.Context, req *SayHelloRequest, opts ...client.CallOption) (*SayHelloResponse, error) {
+	resp := new(SayHelloResponse)
+	if err := c.conn.CallUnary(ctx, []interface{}{req}, resp, "SayHello", opts...); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+var GreetService_ClientInfo = client.ClientInfo{
+	InterfaceName: "org.apache.dubbo.samples.proto.GreetService",
+	MethodNames:   []string{"Greet", "SayHello"},
+	ConnectionInjectFunc: func(dubboCliRaw interface{}, conn *client.Connection) {
+		dubboCli := dubboCliRaw.(*GreetServiceImpl)
+		dubboCli.conn = conn
+	},
+}
+
+// GreetServiceHandler is an implementation of the org.apache.dubbo.samples.proto.GreetService service.
+type GreetServiceHandler interface {
+	Greet(context.Context, *GreetRequest) (*GreetResponse, error)
+	SayHello(context.Context, *SayHelloRequest) (*SayHelloResponse, error)
+}
+
+func RegisterGreetServiceHandler(srv *server.Server, hdlr GreetServiceHandler, opts ...server.ServiceOption) error {
+	return srv.Register(hdlr, &GreetService_ServiceInfo, opts...)
+}
+
+func SetProviderService(srv common.RPCService) {
+	dubbo.SetProviderServiceWithInfo(srv, &GreetService_ServiceInfo)
+}
+
+var GreetService_ServiceInfo = server.ServiceInfo{
+	InterfaceName: "org.apache.dubbo.samples.proto.GreetService",
+	ServiceType:   (*GreetServiceHandler)(nil),
+	Methods: []server.MethodInfo{
+		{
+			Name: "Greet",
+			Type: constant.CallUnary,
+			ReqInitFunc: func() interface{} {
+				return new(GreetRequest)
+			},
+			MethodFunc: func(ctx context.Context, args []interface{}, handler interface{}) (interface{}, error) {
+				req := args[0].(*GreetRequest)
+				res, err := handler.(GreetServiceHandler).Greet(ctx, req)
+				if err != nil {
+					return nil, err
+				}
+				return triple_protocol.NewResponse(res), nil
+			},
+		},
+		{
+			Name: "SayHello",
+			Type: constant.CallUnary,
+			ReqInitFunc: func() interface{} {
+				return new(SayHelloRequest)
+			},
+			MethodFunc: func(ctx context.Context, args []interface{}, handler interface{}) (interface{}, error) {
+				req := args[0].(*SayHelloRequest)
+				res, err := handler.(GreetServiceHandler).SayHello(ctx, req)
+				if err != nil {
+					return nil, err
+				}
+				return triple_protocol.NewResponse(res), nil
+			},
+		},
+	},
+}
diff --git a/start_integrate_test.sh b/start_integrate_test.sh
index 4bf3624..5c77200 100755
--- a/start_integrate_test.sh
+++ b/start_integrate_test.sh
@@ -119,6 +119,9 @@
 
 # config yaml
 array+=("config_yaml")
+# service_discovery
+array+=("service_discovery/interface")
+array+=("service_discovery/service")
 # replace tls config
 echo "The prefix of certificate path of the following files were replaced to \"$(pwd)/tls\"."
 find "$(pwd)/tls" -type f -name '*.yml' -print0 | xargs -0 -n1
diff --git a/transcation/seata-go/README.md b/transcation/seata-go/README.md
new file mode 100644
index 0000000..6aac072
--- /dev/null
+++ b/transcation/seata-go/README.md
@@ -0,0 +1,12 @@
+# Seata-go tcc example
+
+## How to run?
+
+1. Start the seata-server with the docker file.
+
+   ```shell
+   cd dockercompose
+   docker-compose -f docker-compose.yml up -d seata-server
+   ```
+
+2. Just execute the main function under tcc/client/cmd and tcc/server/cmd directory.
diff --git a/transcation/seata-go/README_zh.md b/transcation/seata-go/README_zh.md
new file mode 100644
index 0000000..e18581e
--- /dev/null
+++ b/transcation/seata-go/README_zh.md
@@ -0,0 +1,12 @@
+# Seata-go tcc 例子
+
+## 如何运行?
+
+1. 先执行以下命令,启动 seata-server。
+
+   ```shell
+   cd dockercompose
+   docker-compose -f docker-compose.yml up -d seata-server
+   ```
+
+2. 再执行 tcc/client/cmd 和 tcc/server/cmd 目录下的 main()方法。
diff --git a/transcation/seata-go/conf/seatago.yml b/transcation/seata-go/conf/seatago.yml
new file mode 100644
index 0000000..58607f3
--- /dev/null
+++ b/transcation/seata-go/conf/seatago.yml
@@ -0,0 +1,158 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# time 时间单位对应的是 time.Duration(1)
+seata:
+  enabled: true
+  # application id
+  application-id: applicationName
+  # service group
+  tx-service-group: default_tx_group
+  access-key: aliyunAccessKey
+  secret-key: aliyunSecretKey
+  enable-auto-data-source-proxy: true
+  data-source-proxy-mode: AT
+  client:
+    rm:
+      # Maximum cache length of asynchronous queue
+      async-commit-buffer-limit: 10000
+      # The maximum number of retries when report reports the status
+      report-retry-count: 5
+      # The interval for regularly checking the metadata of the db(AT)
+      table-meta-check-enable: false
+      # Whether to report the status if the transaction is successfully executed(AT)
+      report-success-enable: false
+      # Whether to allow regular check of db metadata(AT)
+      saga-branch-register-enable: false
+      saga-json-parser: fastjson
+      saga-retry-persist-mode-update: false
+      saga-compensate-persist-mode-update: false
+      #Ordered.HIGHEST_PRECEDENCE + 1000  #
+      tcc-action-interceptor-order: -2147482648
+      # Parse SQL parser selection
+      sql-parser-type: druid
+      lock:
+        retry-interval: 30
+        retry-times: 10
+        retry-policy-branch-rollback-on-conflict: true
+    tm:
+      commit-retry-count: 5
+      rollback-retry-count: 5
+      default-global-transaction-timeout: 60s
+      degrade-check: false
+      degrade-check-period: 2000
+      degrade-check-allow-times: 10s
+      interceptor-order: -2147482648
+    undo:
+      # Judge whether the before image and after image are the same,If it is the same, undo will not be recorded
+      data-validation: true
+      # Serialization method
+      log-serialization: jackson
+      # undo log table name
+      log-table: undo_log
+      # Only store modified fields
+      only-care-update-columns: true
+      compress:
+        # Compression type. Allowed Options: None, Gzip, Zip, Sevenz, Bzip2, Lz4, Zstd, Deflate
+        type: None
+        #  Compression threshold Unit: k
+        threshold: 64k
+    load-balance:
+      type: RandomLoadBalance
+      virtual-nodes: 10
+  service:
+    vgroup-mapping:
+      # Prefix for Print Log
+      default_tx_group: default
+    grouplist:
+      default: 127.0.0.1:8091
+    enable-degrade: false
+    # close the transaction
+    disable-global-transaction: false
+  transport:
+    shutdown:
+      wait: 3s
+    # Netty related configurations
+    # type
+    type: TCP
+    server: NIO
+    heartbeat: true
+    # Encoding and decoding mode
+    serialization: seata
+    # Message compression mode
+    compressor: none
+    # Allow batch sending of requests (TM)
+    enable-tm-client-batch-send-request: false
+    # Allow batch sending of requests (RM)
+    enable-rm-client-batch-send-request: true
+    # RM send request timeout
+    rpc-rm-request-timeout: 30s
+    # TM send request timeout
+    rpc-tm-request-timeout: 30s
+  # Configuration Center
+  config:
+    type: file
+    file:
+      name: config.conf
+    nacos:
+      namespace: ""
+      server-addr: 127.0.0.1:8848
+      group: SEATA_GROUP
+      username: ""
+      password: ""
+      ##if use MSE Nacos with auth, mutex with username/password attribute
+      #access-key: ""
+      #secret-key: ""
+      data-id: seata.properties
+  # Registration Center
+  registry:
+    type: file
+    file:
+      name: registry.conf
+    nacos:
+      application: seata-server
+      server-addr: 127.0.0.1:8848
+      group: "SEATA_GROUP"
+      namespace: ""
+      username: ""
+      password: ""
+      ##if use MSE Nacos with auth, mutex with username/password attribute  #
+      #access-key: ""  #
+      #secret-key: ""  #
+  log:
+    exception-rate: 100
+  tcc:
+    fence:
+      # Anti suspension table name
+      log-table-name: tcc_fence_log_test
+      clean-period: 60s
+  # getty configuration
+  getty:
+    reconnect-interval: 0
+    # temporary not supported connection-num
+    connection-num: 1
+    session:
+      compress-encoding: false
+      tcp-no-delay: true
+      tcp-keep-alive: true
+      keep-alive-period: 120s
+      tcp-r-buf-size: 262144
+      tcp-w-buf-size: 65536
+      tcp-read-timeout: 1s
+      tcp-write-timeout: 5s
+      wait-timeout: 1s
+      max-msg-len: 16498688
+      session-name: client_test
+      cron-period: 1s
diff --git a/transcation/seata-go/dockercompose/docker-compose.yml b/transcation/seata-go/dockercompose/docker-compose.yml
new file mode 100644
index 0000000..995e754
--- /dev/null
+++ b/transcation/seata-go/dockercompose/docker-compose.yml
@@ -0,0 +1,27 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+version: "3"
+services:
+  seata-server:
+    image: seataio/seata-server:2.0.0
+    ports:
+      - "8091:8091"
+      - "7091:7091"
+    environment:
+      - SEATA_PORT=8091
+      - STORE_MODE=file
diff --git a/transcation/seata-go/tcc/client/cmd/client.go b/transcation/seata-go/tcc/client/cmd/client.go
new file mode 100644
index 0000000..48eae48
--- /dev/null
+++ b/transcation/seata-go/tcc/client/cmd/client.go
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+
+	"dubbo.apache.org/dubbo-go/v3"
+	"dubbo.apache.org/dubbo-go/v3/client"
+	"dubbo.apache.org/dubbo-go/v3/common/constant"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+
+	"github.com/dubbogo/gost/log/logger"
+
+	_ "github.com/seata/seata-go/pkg/imports"
+	"github.com/seata/seata-go/pkg/integration"
+	"github.com/seata/seata-go/pkg/tm"
+)
+
+// need to setup environment variable "DUBBO_GO_CONFIG_PATH" to "seata-go/tcc/client/conf/dubbogo.yml"
+// and run "seata-go/tcc/server/cmd/server.go" before run
+func main() {
+	integration.UseDubbo()
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo_seata_client"),
+	)
+	if err != nil {
+		panic(err)
+	}
+	cli, err := ins.NewClient(
+		client.WithClientURL("127.0.0.1:20000"),
+		client.WithClientProtocolDubbo(),
+	)
+	if err != nil {
+		panic(err)
+	}
+	conn, err := cli.Dial("UserProvider", client.WithSerialization(constant.Hessian2Serialization))
+	if err != nil {
+		panic(err)
+	}
+	test(conn)
+}
+
+func test(conn *client.Connection) {
+	ctx := tm.Begin(context.Background(), "TestTCCServiceBusiness")
+	business(ctx, conn)
+	<-make(chan struct{})
+}
+
+func business(ctx context.Context, conn *client.Connection) (re error) {
+	var resp bool
+	if re := conn.CallUnary(ctx, []interface{}{1}, &resp, "Prepare"); re != nil {
+		logger.Infof("response prepare: %v", re)
+	} else {
+		logger.Infof("get resp %#v", resp)
+	}
+	return
+}
diff --git a/transcation/seata-go/tcc/server/cmd/server.go b/transcation/seata-go/tcc/server/cmd/server.go
new file mode 100644
index 0000000..2d4fd90
--- /dev/null
+++ b/transcation/seata-go/tcc/server/cmd/server.go
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"dubbo.apache.org/dubbo-go/v3"
+	"dubbo.apache.org/dubbo-go/v3/common/constant"
+	_ "dubbo.apache.org/dubbo-go/v3/imports"
+	"dubbo.apache.org/dubbo-go/v3/protocol"
+	"dubbo.apache.org/dubbo-go/v3/server"
+
+	"github.com/dubbogo/gost/log/logger"
+
+	_ "github.com/seata/seata-go/pkg/imports"
+	"github.com/seata/seata-go/pkg/integration"
+	"github.com/seata/seata-go/pkg/rm/tcc"
+
+	"github.com/apache/dubbo-go-samples/transcation/seata-go/tcc/service"
+)
+
+func main() {
+	integration.UseDubbo()
+	userProviderProxy, err := tcc.NewTCCServiceProxy(&service.UserProvider{})
+	if err != nil {
+		logger.Errorf("get userProviderProxy tcc service proxy error, %v", err.Error())
+		return
+	}
+	ins, err := dubbo.NewInstance(
+		dubbo.WithName("dubbo_seata_server"),
+	)
+	if err != nil {
+		panic(err)
+	}
+	srv, err := ins.NewServer(
+		server.WithServerProtocol(
+			protocol.WithDubbo(),
+			protocol.WithPort(20000),
+		),
+	)
+	if err != nil {
+		panic(err)
+	}
+	if err := srv.Register(userProviderProxy, nil, server.WithInterface("UserProvider"), server.WithSerialization(constant.Hessian2Serialization)); err != nil {
+		panic(err)
+	}
+	if err := srv.Serve(); err != nil {
+		panic(err)
+	}
+}
diff --git a/transcation/seata-go/tcc/service/user_provider.go b/transcation/seata-go/tcc/service/user_provider.go
new file mode 100644
index 0000000..9961dfc
--- /dev/null
+++ b/transcation/seata-go/tcc/service/user_provider.go
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package service
+
+import (
+	"context"
+
+	"github.com/dubbogo/gost/log/logger"
+	"github.com/seata/seata-go/pkg/tm"
+)
+
+type UserProvider struct {
+}
+
+func (t *UserProvider) Prepare(ctx context.Context, params ...interface{}) (bool, error) {
+	logger.Infof("Prepare result: %v, xid %v", params, tm.GetXID(ctx))
+	return true, nil
+}
+
+func (t *UserProvider) Commit(ctx context.Context, businessActionContext *tm.BusinessActionContext) (bool, error) {
+	logger.Infof("Commit result: %v, xid %s", businessActionContext, tm.GetXID(ctx))
+	return true, nil
+}
+
+func (t *UserProvider) Rollback(ctx context.Context, businessActionContext *tm.BusinessActionContext) (bool, error) {
+	logger.Infof("Rollback result: %v, xid %s", businessActionContext, tm.GetXID(ctx))
+	return true, nil
+}
+
+func (t *UserProvider) GetActionName() string {
+	logger.Infof("GetActionName result")
+	return "TwoPhaseDemoService"
+}