Ahhh wait... I see. Sorry, I'm a tool. anonymous wrote : | a) A RuntimeException is thrown from onMessage and ack mode = auto ack or dups ok, retry is immediately attempted (in JBM code). | anonymous wrote : | | | | This is a bit different. I believe in the case of a transacted session the MessageCallbackHandler does nothing correct? It sounds like you are talking about JBM handling non transacted scenarios for DLQ. | | | | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986867#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...