To treat license headers in a unified and compliant way, this project uses the Mycila License Maven Plugin http://code.mycila.com/license-maven-plugin/

In a (non-POM) project simply add:

<build>
	<plugins>
		<plugin>
			<groupId>com.mycila</groupId>
			<artifactId>license-maven-plugin</artifactId>
		</plugin>
	</plugins>
</build>

to the project's POM.

Templates and settings defined in license are based on the entire project cloned.

Should modules have a different hierarchy, it may be necessary to adjust the configuration of header and headerDefinition from the parent POM.