hi, i have a application that i use seam 1.2.1 and ejb3 i use @In to inject a stateFull bean(a) into another stateFull bean(b) and at run time i get could not register synchronization exception.. this exception does not tell any thing,, how can i be aware of main problem that causes this exception ? i use @In to inject stateFull in another beans and they work correctly View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4087475#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...