Apache License, Version 2.0, January 2004
The first and simplest usage is to configure the Maven Licenses Verifier Plugin
<plugin>
<groupId>com.soebes.maven.plugins</groupId>
<artifactId>doxygen-maven-plugin</artifactId>
<version>1.1.0</version>
<executions>
<execution>
<phase>test</phase>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
If you like you can configure an appropriate plugin group in your settings.xml file to make life a little bit easier.
<settings>
...
<pluginGroups>
<pluginGroup>com.soebes.maven.plugins</pluginGroup>
</pluginGroups>
...
</settings>