Test WaitNotifySuspendedVThreadTest.java timed out

Possibly a different manifestation of JDK-8313570

----------System.out:(9/354)----------
setting event callbacks ...
setBreakpoint: started
setBreakpoint: finished
Main thread: suspending virtual and carrier threads
Main thread: calling monitor.notifyAll()
Main thread: resuming virtual thread
Main thread: before monitor_completed.wait()
Breakpoint: before monitor.wait(): methBreakpoint in virtual thread
Timeout refired 1200 times
----------System.err:(0/0)----------
----------rerun:(51/7397)*----------