"luuzz" wrote : It's working great but i don't understand why i have to expose the setters and getters in the bean interface... | Thanks if my understanding is correct, you have to the declare getters and setters in the so-called "business interface" of your EJBs because with the EJB(3) architecture you're never accessing EJB bean instances directly. Technically, when a EJBean is called, a container-generated proxy/stub object is called which in turn delegates to the EJB instance. These container-generated proxy/stub objects implement the same methods as declared in the business interface of your EJB, that's why you need to define a business interface. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061609#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...