[maven-release-plugin] prepare branch release-0.5.0
diff --git a/distributedlog-common/pom.xml b/distributedlog-common/pom.xml
index 116db3c..7eac405 100644
--- a/distributedlog-common/pom.xml
+++ b/distributedlog-common/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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>
   <parent>
     <groupId>org.apache.distributedlog</groupId>
diff --git a/distributedlog-dist/pom.xml b/distributedlog-dist/pom.xml
index cd5c228..a8f1bb9 100644
--- a/distributedlog-dist/pom.xml
+++ b/distributedlog-dist/pom.xml
@@ -18,8 +18,7 @@
     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/maven-v4_0_0.xsd">
+<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/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
diff --git a/pom.xml b/pom.xml
index 3c19a5d..82f6b5d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,7 @@
     <connection>scm:git:https://github.com/apache/distributedlog.git</connection>
     <developerConnection>scm:git:https://github.com/apache/distributedlog.git</developerConnection>
     <url>https://github.com/apache/distributedlog</url>
-    <tag>HEAD</tag>
+    <tag>release-0.5.0</tag>
   </scm>
   <issueManagement>
     <system>jira</system>
diff --git a/tests/backward-compat-0.4/pom.xml b/tests/backward-compat-0.4/pom.xml
index f29ce54..464c4fd 100644
--- a/tests/backward-compat-0.4/pom.xml
+++ b/tests/backward-compat-0.4/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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>
   <parent>
     <groupId>org.apache.distributedlog.tests</groupId>
diff --git a/tests/backward-compat/pom.xml b/tests/backward-compat/pom.xml
index ffe3a61..4e8930d 100644
--- a/tests/backward-compat/pom.xml
+++ b/tests/backward-compat/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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>
   <parent>
     <groupId>org.apache.distributedlog.tests</groupId>
diff --git a/tests/jmh-0.4/pom.xml b/tests/jmh-0.4/pom.xml
index 41719f9..647b357 100644
--- a/tests/jmh-0.4/pom.xml
+++ b/tests/jmh-0.4/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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>
   <parent>
     <groupId>org.apache.distributedlog.tests</groupId>
diff --git a/tests/jmh/pom.xml b/tests/jmh/pom.xml
index b194fe7..0aa3881 100644
--- a/tests/jmh/pom.xml
+++ b/tests/jmh/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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>
   <parent>
     <groupId>org.apache.distributedlog.tests</groupId>
diff --git a/tests/pom.xml b/tests/pom.xml
index 5c62294..dffa615 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -15,8 +15,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<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">
   <packaging>pom</packaging>
   <modelVersion>4.0.0</modelVersion>
   <parent>