I think xmvn just needs to be added to bodhi. I see a build in koji, but it's not available from yum. Also, maven-local should probably Require it, since at the moment it fails with: /usr/bin/mvn-build: line 158: xmvn: command not found
This is intentional, F18 is not supposed to include XMvn. It would break too many things due to autorequires kicking in, maven2-common-poms still being present and several other problems. The build was done but then we found about these issues. XMvn style packaging is available only in F19+ as stated in the guidelines. Closing as WONTFIX, for supporting older versions you have to use older style.