"petemuir" wrote : Is this the first exception to appear? It appears that the (EJB3 persistence) transaction you are using is broken from the exception. Yes this is the first Exception that appears in the log. I think the transaction is broken because of the removed component. But why ist the component removed by the container when I just start the new conversation? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3973861#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...