Maven-Source plugin

<plugin>
    <inherited>true</inherited>
       <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
           <executions>
             <execution>
              <id>attach-sources</id>
                <goals>
                  <goal>jar</goal>
                </goals>
              </execution>
           </executions>
</plugin>

<plugin>
      <artifactId>maven-source-plugin</artifactId>
      <executions>
        <execution>
          <id>attach-sources</id>
          <phase>deploy</phase>
          <goals><goal>jar-no-fork</goal></goals>
        </execution>
      </executions>
</plugin>