I developed a webservice using JAXWS and created a web service client for this web service. I deployed the webservice on JBoss 4.2.0.GA. When I run the JBoss Server using jdk 1.5.0_14. It is working fine. But when I run the JBoss Server using jdk 1.6.0. It is throwing following error. I tried the compile the webservice and its client using both versions of jdk separately and test it on JBoss server one by one. But the problem remains the same. javax.xml.ws.WebServiceException: java.lang.UnsupportedOperationException: setProperty must be overridden by all subclasses of SOAPMessage at org.jboss.ws.core.jaxws.client.ClientImpl.handleRemoteException(ClientImpl.java:404) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:314) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:172) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:152) at $Proxy83.markingsRetrieve(Unknown Source) at com.aha.web.TestServlet.processRequest(TestServlet.java:51) at com.aha.web.TestServlet.doPost(TestServlet.java:101) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.UnsupportedOperationException: setProperty must be overridden by all subclasses of SOAPMessage at javax.xml.soap.SOAPMessage.setProperty(SOAPMessage.java:441) at org.jboss.ws.core.soap.SOAPMessageImpl.(SOAPMessageImpl.java:83) at org.jboss.ws.core.soap.MessageFactoryImpl.createMessage(MessageFactoryImpl.java:171) at org.jboss.ws.core.CommonSOAP11Binding.createMessage(CommonSOAP11Binding.java:59) at org.jboss.ws.core.CommonSOAPBinding.bindRequestMessage(CommonSOAPBinding.java:158) at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:291) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:302) ... 25 more Can anyone help me? Thanks in Advance. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4168957#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...