Your package maven-stapler-plugin failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6954334 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904094 [details] build.log
Created attachment 904095 [details] root.log
Created attachment 904096 [details] state.log
Fixed in maven-stapler-plugin-1.17-2.fc22.