jdi/EventQueue/remove/remove004 failed due to "ERROR: thread2 is not alive"

The following test failed in my jdk-13+11 stress testing in
the slowdebug config:

vmTestbase/nsk/jdi/EventQueue/remove/remove004/TestDescription.java

Here's a snippet of the .jtr file:

==> nsk/jdi/EventQueue/remove/remove004 TESTING BEGINS
--> debugger: breakpointForCommunication
debugee.stderr> **> debuggee: debuggee started!
debugee.stderr> **> debuggee: before: methodForCommunication();

==> nsk/jdi/EventQueue/remove/remove004 new check: # 0
debugee.stderr> **> debuggee: before: Thread.sleep
--> debugger: thread2 is created
--> debugger: before: thread2.start()
--> debugger: before: waitnotifyObj.wait();
--> debugger: -----t2: method 'run' enter
--> debugger: -----t2: entered into block: synchronized (waitnotifyObj)
--> debugger: -----t2: exited from block: synchronized (waitnotifyObj)
--> debugger: mainThread is out of: synchronized (lockingObject)
--> debugger: -----t2: entered into block: synchronized (lockingObject)
--> debugger: -----t2: exited from block: synchronized (lockingObject)
--> debugger: -----t2: eventSet = eventQueue.remove(); expects: InterruptedException
debugee.stderr> **> debuggee: after: Thread.sleep
# ERROR: ##> debugger: ERROR: -----t2: Exception : nsk.jdi.EventQueue.remove.remove004$JDITestRuntimeException: JDITestRuntimeException : ** return from eventQueue.remove(); **
The following stacktrace is for failure analysis.
nsk.share.TestFailure: ##> debugger: ERROR: -----t2: Exception : nsk.jdi.EventQueue.remove.remove004$JDITestRuntimeException: JDITestRuntimeException : ** return from eventQueue.remove(); **
        at nsk.share.Log.logExceptionForFailureAnalysis(Log.java:428)
        at nsk.share.Log.complain(Log.java:399)
        at nsk.jdi.EventQueue.remove.remove004.log3(remove004.java:120)
        at nsk.jdi.EventQueue.remove.remove004$Threadremove004.run(remove004.java:527)
--> debugger: -----t2: method 'run' exit
# ERROR: ##> debugger: ERROR: thread2 is not alive

==> nsk/jdi/EventQueue/remove/remove004 TESTING ENDS
--> debugger: waiting for VMDeathEvent
# ERROR: ##> debugger: ERROR: Exception : nsk.jdi.EventQueue.remove.remove004$JDITestRuntimeException: JDITestRuntimeException : ** EXCEPTION while waiting for event ** : nsk.jdi.EventQueue.remove.remove004$JDITestRuntimeException: JDITestRuntimeException : ** TIMEOUT while waiting for event **
# ERROR: ##> debugger: test phase has not finished normally: debuggee is still alive
--> debugger: ......forcing: vm.exit();
TEST FAILED
# ERROR: binder> Debugee VM has not exited correctly: trying to kill it


The test failed in 3/3 'slowdebug' configs, but did not fail in
3/3 'fastdebug' or 3/3 'release' configs.