Merged revision(s) 1542442 from ofbiz/trunk:
Replace DCL pattern with AtomicReference in JmsListenerFactory.

https://issues.apache.org/jira/browse/OFBIZ-4455


git-svn-id: https://svn.apache.org/repos/asf/ofbiz/branches/release13.07@1542443 13f79535-47bb-0310-9956-ffa450edef68