"ericw78" wrote : Yes, there are in 2 separate jars because they come from 2 different projects. | Why do you say me to package them into an ear ? | What is different using ear ? | | I suspect that since these beans belong to two different jars (applications), the classes are not shared. Having said that, i can't explain why the hot deployment works. You can try adding the bean interfaces to the other jar (EprocEjb.jar). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4181746#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...