Hi,all Sometime, a very strange exception will occur (at least for me it is:P) when i QUICKLY double click a Statefull SB supported link | Caused by javax.el.ELException with message: "javax.ejb.ConcurrentAccessException: no concurrent calls on stateful bean 'jboss.j2ee:service=EJB3,name=TestPage2Bean' (EJB3 4.3.13)" What does it mean? thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059536#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...