diff --git a/before_ut.bat b/before_ut.bat
index a10df71..5296d0f 100644
--- a/before_ut.bat
+++ b/before_ut.bat
@@ -1,3 +1,19 @@
+::
+::  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.
+
 set zkJar=zookeeper-3.4.9-fatjar.jar
 md remoting\zookeeper\zookeeper-4unittest\contrib\fatjar config_center\zookeeper\zookeeper-4unittest\contrib\fatjar registry\zookeeper\zookeeper-4unittest\contrib\fatjar
 curl -L https://github.com/dubbogo/resources/raw/master/zookeeper-4unitest/contrib/fatjar/%zkJar% -o remoting/zookeeper/zookeeper-4unittest/contrib/fatjar/%zkJar%
diff --git a/before_ut.sh b/before_ut.sh
index 7acee76..323173b 100644
--- a/before_ut.sh
+++ b/before_ut.sh
@@ -1,3 +1,20 @@
+#
+#  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.
+
+
 mkdir -p remoting/zookeeper/zookeeper-4unittest/contrib/fatjar config_center/zookeeper/zookeeper-4unittest/contrib/fatjar registry/zookeeper/zookeeper-4unittest/contrib/fatjar
 wget -P "remoting/zookeeper/zookeeper-4unittest/contrib/fatjar" https://github.com/dubbogo/resources/raw/master/zookeeper-4unitest/contrib/fatjar/zookeeper-3.4.9-fatjar.jar
 cp remoting/zookeeper/zookeeper-4unittest/contrib/fatjar/zookeeper-3.4.9-fatjar.jar config_center/zookeeper/zookeeper-4unittest/contrib/fatjar/
diff --git a/config/provider_config_test.go b/config/provider_config_test.go
index db4b5f9..e8a9c1f 100644
--- a/config/provider_config_test.go
+++ b/config/provider_config_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 config
 
 import (
diff --git a/dubbogo.png b/dubbogo.png
deleted file mode 100644
index 2cac434..0000000
--- a/dubbogo.png
+++ /dev/null
Binary files differ
diff --git a/protocol/mock/mock_invoker.go b/protocol/mock/mock_invoker.go
index 557dafa..c509cef 100644
--- a/protocol/mock/mock_invoker.go
+++ b/protocol/mock/mock_invoker.go
@@ -1,3 +1,19 @@
+//  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 MockGen. DO NOT EDIT.
 // Source: invoker.go
 
diff --git a/registry/etcdv3/listener.go b/registry/etcdv3/listener.go
index e0dc099..31d62fa 100644
--- a/registry/etcdv3/listener.go
+++ b/registry/etcdv3/listener.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/registry/etcdv3/listener_test.go b/registry/etcdv3/listener_test.go
index 00024d2..c064f99 100644
--- a/registry/etcdv3/listener_test.go
+++ b/registry/etcdv3/listener_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/registry/etcdv3/registry.go b/registry/etcdv3/registry.go
index 4ee9096..b058113 100644
--- a/registry/etcdv3/registry.go
+++ b/registry/etcdv3/registry.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/registry/etcdv3/registry_test.go b/registry/etcdv3/registry_test.go
index 6da9ad9..3f8c0f4 100644
--- a/registry/etcdv3/registry_test.go
+++ b/registry/etcdv3/registry_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/registry/nacos/listener.go b/registry/nacos/listener.go
index 1f264ec..25cd3d0 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -1,3 +1,20 @@
+/*
+ * 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 nacos
 
 import (
diff --git a/registry/nacos/registry.go b/registry/nacos/registry.go
index 810a1cb..a8b9fa8 100644
--- a/registry/nacos/registry.go
+++ b/registry/nacos/registry.go
@@ -1,3 +1,20 @@
+/*
+ * 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 nacos
 
 import (
diff --git a/registry/nacos/registry_test.go b/registry/nacos/registry_test.go
index 023ff78..e6ab693 100644
--- a/registry/nacos/registry_test.go
+++ b/registry/nacos/registry_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 nacos
 
 import (
diff --git a/remoting/etcdv3/client.go b/remoting/etcdv3/client.go
index 57d1211..0509685 100644
--- a/remoting/etcdv3/client.go
+++ b/remoting/etcdv3/client.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/remoting/etcdv3/client_test.go b/remoting/etcdv3/client_test.go
index 187789e..8f9b80c 100644
--- a/remoting/etcdv3/client_test.go
+++ b/remoting/etcdv3/client_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/remoting/etcdv3/facade.go b/remoting/etcdv3/facade.go
index e75b39d..499044b 100644
--- a/remoting/etcdv3/facade.go
+++ b/remoting/etcdv3/facade.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/remoting/etcdv3/listener.go b/remoting/etcdv3/listener.go
index f540191..a4d5805 100644
--- a/remoting/etcdv3/listener.go
+++ b/remoting/etcdv3/listener.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (
diff --git a/remoting/etcdv3/listener_test.go b/remoting/etcdv3/listener_test.go
index 33904a2..7da8581 100644
--- a/remoting/etcdv3/listener_test.go
+++ b/remoting/etcdv3/listener_test.go
@@ -1,3 +1,20 @@
+/*
+ * 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 etcdv3
 
 import (