anonymous wrote : Yes, doesn't that give you ordering? yes it does, but isn't this done differently. You could have multiple consumers for a start, which is why you don't release the next message in the group until the previous has been acked. Also lets say you have 2 groups of messages odd and even, say m1 to m10, you should be able to deliver m2 even if m1 hasn't been delivered yet. Another thing is that you should always deliver in sequence, so if you send 3 messages with sequence 1, 3 then 2, the queue shouldn't deliver the message with sequence 3 before it delivers sequence no 2. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4193841#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...