Call.setReturnType(QName) If this does not work for you, please create a jira issue and a small test case View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3984376#3984376 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3984376