Yeah, Ive managed to recreate it and there is a bug there. One thing that exacerbates the issue is that you are acknowledging every message when you only need to ack 1. from the spec: anonymous wrote : CLIENT_ACKNOWLEDGE - With this option, a client acknowledges a | message by calling the message's acknowledge method. Acknowledging a | consumed message automatically acknowledges the receipt of all messages | that have been delivered by its session. | If you change this then you should be able to consume all the messages. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4247504#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...