SM-2255: Add logging to troubleshoot intermittent test failure

(cherry picked from commit e564caf84bec1c215f94aeb089b10ac23c0c50d7)
SM-2256: make jms appender async
Thanks to Bart for the pull request!

(cherry picked from commit 9741d69a9751bdb7bce9a95b1859d9c25d598dce)