delayed execution is done within the same transaction. asynchronous continuation introduces a wait state and continues execution in another transaction. delayed execution transforms tail recursion into a while loop. but unless you have a while loop, i think there is less chance that you run into a problem. another motivation whas that it will reduce the overall runtime footprint. if on average, you have 2 automatic nodes in a row, this will reduce the depth of the call stack of all concurrent threads. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991975#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...