To anyone having the same question: Have your SEI implement javax.xml.rpc.server.ServiceLifecycle. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4102201#4102201 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4102201