Github user franz1981 commented on the issue:
https://github.com/apache/activemq-artemis/pull/2481
I know that System::nanoTime is based on monothonic clock of the CPU
thast's not wall clock time ie can't go back.
System::currentTimeMillis ie UTC wall-clock can go backwards instead due to
ntp alignment.
Can you please explain better whallt's happened?---
