It's pretty much a copy and hack to make it fit into maven at present.
Needs to have customisation added to it (at present it generates hibernate.pdf!)
Have a look in hibernate CVS for example files (which have to be put in src/reference/src in your project)
git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114587 13f79535-47bb-0310-9956-ffa450edef68