Could fix the MessageProducer under transaction environment. Now I have a testcase sending messages in a transacted session, right before calling commit I called failOver, and all the messages were received on the new node. Basically I created a method called transferHAState under DelegateSupport what will set the ID (copying it from the new server's object). That is allowing handleFailoever on ConnectionAspect to reconnect objects to the new server and change IDs to the expected IDs on the new server. It's working nicely now. Clebert View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977731#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...