@Out always exports a value (or throws an exception if required=true). There isn't a way to tell it not to. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961145#3961145 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3961145