Github user franz1981 commented on the issue:
https://github.com/apache/activemq-artemis/pull/1757
@michaelandrepearce
It is near to be fixed, but I've opened a separate JIRA for it:

Re memory leaks of `RemotingConnectionImpl` into `JaasCallbackHandler`
probably @gtully or @jbertram would be super fast to indentify why are not
collected propertly...---
