jdk8 b123, macOS

java/lang/management/ThreadMXBean/Locks.java failed:

#section:main
----------messages:(3/105)----------
command: main Locks
reason: User specified action: run main/othervm Locks
elapsed time (seconds): 1.047
----------System.out:(11/546)----------
LockBThread about to block on objC
LockAThread about to block on objB
LockAThread blocked on java.lang.Object@5570908b Owner = LockBThread id = 11
LockBThread Id = 11 blocked on java.lang.Object@10f261e9 Owner = MainThread id = 9
MainThread Id = 9 blocked on null
LockAThread blocked on java.lang.Object@5570908b Owner = LockBThread id = 11
LockBThread Id = 11 blocked on java.lang.Object@10f261e9 Owner = MainThread id = 9
MainThread Id = 9 blocked on null
LockBThread about to exit
LockAThread about to exit
WaitingThread about to wait on objC
----------System.err:(5/432)----------
java.lang.RuntimeException: Thread WaitingThread is expected to wait on java.lang.Object@10f261e9 but got null Thread.State = RUNNABLE
at Locks.checkBlockedObject(Locks.java:77)
at Locks.access$200(Locks.java:37)
at Locks$CheckerThread.run(Locks.java:208)
STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Thread WaitingThread is expected to wait on java.lang.Object@10f261e9 but got null Thread.State = RUNNABLE