Your package maven-ear-plugin either requires or buildrequires plexus-container-default. This package contains old API which is not commonly used and has not contained maven dependency mappings since September 2011. It means that unless your package is using custom dependency map to build, it is not using plexus-container-default. In most cases your package is instead using 'plexus-containers-container-default' package. If any pom.xml files contain reference to groupId:artifactId org.codehaus.plexus:plexus-container-default you can replace plexus-container-default with plexus-containers-container-default. If your pom.xml files don't reference mentioned groupId:artifactId it should be safe to remove completely
Created attachment 652512 [details] Patch fixing the bug
I believe that this bug is fixed in maven-ear-plugin-2.7-3, which is available in Fedora Rawhide. I am closing the bug now, thank you for reporting it. A summary of changes is included below. * Tue Nov 27 2012 Mikolaj Izdebski <mizdebsk> - 2.7-3 - Don't use legacy plexus-container-default, resolves: rhbz#878557 - Install license files, resolves: rhbz#880268