Running b01 PIT of JFR, I'm getting seemingly harmless and totally irrelevant exceptions now and again.
For instance, in 2D_FullScreen/GetDisplayModeTest:

Exception in thread "Thread-2" com.oracle.jrockit.jfr.management.NoSuchRecordingException: null:0
        at oracle.jrockit.jfr.VMJFR.findRecording(VMJFR.java:440)
        at oracle.jrockit.jfr.VMJFR.dumpRecording(VMJFR.java:469)
        at oracle.jrockit.jfr.VMJFR.shutdown(Native Method)
        at oracle.jrockit.jfr.JFRImpl$1.run(JFRImpl.java:129)
        at java.lang.Thread.run(Thread.java:722)

It has nothing with display modes etc. but may disorient Aurora matching system looking for new exceptions.
I have it on all platforms in different tests all but randomly.