https://bugzilla.redhat.com/show_bug.cgi?id=837388
--- Comment #1 from Jens Petersen petersen@redhat.com --- Is it possible you could attach some sensible test-case.
Anyway I am assuming this is related to the change from Java 6 to Java 7.
I know for Java 6 some workaround was needed for the WM_NAME property. Maybe that has changed for Java 7 perhaps?