anonymous wrote : public B doIt(B value) Is this a typo? Did you mean public A doIt(A value) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4259405#4259405 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4259405