[ISSUE #9663] Add flatten-maven-plugin plugin (#9866)

Change-Id: Ic339c1e6622fbf8d48a0257ef532831d268325a2

Author: lizhimins

pom.xml

@@ -155,6 +155,7 @@
         <rocketmq-client-java.version>5.0.5</rocketmq-client-java.version>
 
         <!-- Build plugin dependencies -->
+        <flatten-maven-plugin.version>1.7.2</flatten-maven-plugin.version>
         <versions-maven-plugin.version>2.2</versions-maven-plugin.version>
         <dependency-mediator-maven-plugin.version>1.0.2</dependency-mediator-maven-plugin.version>
         <clirr-maven-plugin.version>2.7</clirr-maven-plugin.version>
@@ -204,6 +205,36 @@
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>flatten-maven-plugin</artifactId>
+                <version>${flatten-maven-plugin.version}</version>
+                <inherited>true</inherited>
+                <executions>
+                    <execution>
+                        <id>flatten</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>flatten</goal>
+                        </goals>
+                        <configuration>
+                            <updatePomFile>true</updatePomFile>
+                            <flattenMode>oss</flattenMode>
+                            <pomElements>
+                                <distributionManagement>remove</distributionManagement>
+                                <repositories>remove</repositories>
+                            </pomElements>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>flatten-clean</id>
+                        <phase>clean</phase>
+                        <goals>
+                            <goal>clean</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>versions-maven-plugin</artifactId>