nsk/jdi/ObjectReference/waitingThreads/waitingthreads003 fails with JVMTI_ERROR_INVALID_CLASS

[2015-11-24T04:21:13.83] binder> Received expected signal from debugee: ready
[2015-11-24T04:21:13.83] debugee.stderr> debuggee > entered: synchronized (lockingObject) {}
[2015-11-24T04:21:13.83] debugee.stderr> debuggee > entered: synchronized (waitnotifyObj) {}
[2015-11-24T04:21:13.83] debugee.stderr> JDWP exit error JVMTI_ERROR_INVALID_CLASS(21): on getting class status [util.c:1285]
[2015-11-24T04:21:13.83] debugee.stdout> FATAL ERROR in native method: JDWP on getting class status, jvmtiError=JVMTI_ERROR_INVALID_CLASS(21)
[2015-11-24T04:21:13.83] debugee.stdout> Current thread is 25091
[2015-11-24T04:21:13.83] debugee.stdout> Dumping core ...
[2015-11-24T04:27:01.22] # ERROR: debugger FAILURE > Unexpected Exception: null

Also, see attached.