I agree that although your application usage of temporary queues was an anti-pattern, it shouldn't leak threads as long as you were closing the connection. Can you create a JIRA with a small program that demonstrates this issue and we will investigate further? Also can you first verify you're not just hitting this http://jira.jboss.org/jira/browse/JBMESSAGING-1215 issue that was fixed a while back? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127315#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...