Terry,
Thanks for the tip on:
runtime.realTimeTimer.defaultTaskQueueSizeThe setting was adjusted to a max of 2. The FATAL message still occurs. Periodicity is around a minute between occurrences. It seems better than it was but still nagging away.
If you're not seeing the same thing on your end there must be a configuration difference on my end. Dealing with configuration problems is tiresome for all involved. With that in mind, I highly recommend Docker. If Mango were available on the Docker hub I'd definitely use it.