To get all your hivemodule.xml's documented just include the following snippet in you pom (assuming a working Maven 2 installation and access to the central repository):
<reporting>
<plugins>
...
<plugin>
<groupId>ch.marcus-schulte.maven</groupId>
<artifactId>hivedoc-plugin</artifactId>
<version>1.0.2</version>
</plugin>
</plugins>
</reporting>Make sure to also enable the maven-javadoc-plugin to benefit from automatic links to the javadoc.
If, for some reason, you cannot use the central repository you can download a repo-bundle (including sources) here