I installed the jbossws-cxf-3.1.1.GA to JBoss Servcer 4.2.3GA without error. However, when I deploy my data service, I got an error: 17:42:58,434 ERROR [MessageIDProcessor] javax.xml.soap.SOAPException: java.lang.IllegalStateException: Failed to load javax.xml.soap.SOAPFactory: org.jboss.ws.core.soap.SOAPFactoryImpl I thought jbossws-cxf-3.1.1.GA should not use org.jboss.ws.core.soap implementation any more. Thanks for any help, Xinxin View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4250278#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...