There are still references to maven2, mvn-jpp, unneeded depmaps etc. Getting rid of conditionals and generally cleaning up the spec file is badly needed
plexus-bsh-factory-1.0-0.8.a7.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/plexus-bsh-factory-1.0-0.8.a7.fc18
plexus-bsh-factory-1.0-0.8.a7.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.