Maven 3.x warnings about build.plugins.plugin.version

Two posts to read about this issue in order to solve it

• The fix is to explicitly specify the version for each plugin that is used. via StackOverflow
• You can specify the plugin version by see in Maven 3.x Plugin Compatibility Matrix doc.

Example: in my case, I will use:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-compiler-plugin</artifactId>
  <version>2.0.2</version>
  <configuration>
    <source>1.6</source>
    <target>1.6</target>
  </configuration>
</plugin>