Lost half a day on this, I'm going to postpone it.

The plugin works great, see this branch: https://github.com/yrodiere/hibernate-search/tree/HSEARCH-3031

... except there is a bug related to parsing XML files with comments which essentially prevents us from running the plugin on any Maven module containing a persistence.xml test resource: https://github.com/buschmais/jqa-xml-plugin/issues/4

So let's wait for jqassistant 1.4, which should solve the issue.