Hello. Sorry for delay. I've found the reason: problem with classloader was in javax.wsdl.factory.WSDLFactory. WSDLFactory located in wsdl4j.jar, but this jar located not only in deploy\jbossws.sar but in some other places and WSDLFactory classloader was not the same as for WSDLDefinitionsFactory. Problem solved by removing duplicated wsdl4j.jar. Tahnks for attention, Grigory. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4146822#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...