Hey there, I filed the bug with the review id JI-9022920 a couple of days ago.
Could someone with write access to the bug system please add the information that the problem occurs with SwingSet2.jar, too. Also, as discussed in http://lists.apple.com/archives/java-dev/2015/Jul/msg00008.html, others have not been able to reproduce the issue with the same OS X/Java version. Perhaps this comes down to some driver/hardware issue. Thanks, -hendrik