Hi, I had this problem once and the reason seemed to be that jbossall-client.jar contained some of the classes in wsdl4j.jar. So I added wsdl4j.jar to classpath in a position before that of jbossall-client.jar, so that the correct class in wsdl4j.jar would be located first and the method would be found. Hope this helps! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4195500#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...