Question : WSWS3140E: Error: Deserializing parameter

I have problem running webservices on Websphere Portal 5.1. My service hits the database and the proper results are returned back from the database.
After marshalling the response object into SOAPElement(My Service returns a SOAPElement as output), I am returning the SOAPElement to the client.
When the SOAPElement is returned websphere tries to deserialize the SOAPElement and I am getting the following error

[2/28/06 16:58:24:184 EST]  f4f0f4f SystemErr     R WebServicesFault
 faultCode: Server.generalException
 faultString: org.xml.sax.SAXException: WSWS3140E: Error: Deserializing parameter 'getMyTasksResponse':  could not find deserializer for type {java}org.w3c.dom.Element To see the message containing the parsing error in the log, either enable web service engine tracing or set MessageContext.setHighFidelity(true).

[2/28/06 16:58:24:184 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.WebServicesFault.makeFault(WebServicesFault.java:173)
[2/28/06 16:58:24:184 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.SOAPPart.getSOAPEnvelope(SOAPPart.java:932)
[2/28/06 16:58:24:184 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.SOAPPart.getFault(SOAPPart.java:1342)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.Message.getFault(Message.java:804)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.Message.ifFaultThrowSelf(Message.java:784)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.PivotHandlerWrapper.invoke(PivotHandlerWrapper.java:252)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.WebServicesEngine.invoke(WebServicesEngine.java:255)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.client.Connection.invokeEngine(Connection.java:690)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.client.Connection.invoke(Connection.java:616)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.client.Connection.invoke(Connection.java:446)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.engine.client.Call.invoke(Call.java:1379)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.ibm.ws.webservices.multiprotocol.AgnosticCall.invoke(AgnosticCall.java:142)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at com.metlife.us.ins.portal.svcportal.uw.SPUWBaseClient.invokeService(SPUWBaseClient.java)
[2/28/06 16:58:24:194 EST]  f4f0f4f SystemErr     R       at


Code snippet used for invoking the service :
      ServiceFactory sf = ServiceFactory.newInstance();
      String qname = SPUWPropertyProvider.getProperty(SPUWConstants.QNAME + "." + portletId);
      String serviceName = SPUWPropertyProvider.getProperty(SPUWConstants.SERVICE_NAME + "." + portletId);
      String portType = SPUWPropertyProvider.getProperty(SPUWConstants.PORT_TYPE + "." + portletId);
      String endPointAddress = SPUWPropertyProvider.getProperty(SPUWConstants.ENDPOINT_ADDRESS + "." + portletId);
      URL wsdlURL = new URL(SPUWPropertyProvider.getProperty(SPUWConstants.WSDL_URL + "." + portletId));
            QName serviceQname = new QName(qname, serviceName);
      Service s = sf.createService(wsdlURL, serviceQname);
      Call call = s.createCall();
      //setting parameters to the call object
      call.setOperationName(
            new QName(
                  qname, methodName));
      call.setProperty(Call.OPERATION_STYLE_PROPERTY, SPUWConstants.STYLE);
      //call.setProperty(Call.ENCODINGSTYLE_URI_PROPERTY, ""); //literal

      call.setProperty(Call.SOAPACTION_URI_PROPERTY,qname);
      call.setProperty(Call.SOAPACTION_USE_PROPERTY, Boolean.TRUE);
      call.setTargetEndpointAddress(endPointAddress);
      call.setPortTypeName(new QName (qname,portType));
      call.addParameter(
            "inp",
            Constants.WEBSERVICES_SOAPELEMENT,
            SOAPElement.class,
            ParameterMode.IN);
      call.setReturnType(
            Constants.WEBSERVICES_SOAPELEMENT,
            SOAPElement.class);
      SOAPElement response = (SOAPElement) call.invoke(new Object[] { request });
      return response;
      
      
I face this issue only with 5.1 and the same code works fine with 5.0. Could anyone help me fixing the same?
Thanks

Answer : WSWS3140E: Error: Deserializing parameter

Hi,

Your client is aware of the wsdl, which defines the abstract contract, but is unaware of the java/wsdl mapping information.
Use the JNDI lookup of a preconfigured stub or use ...

Code:

 ServiceFactoryImpl factory = (ServiceFactoryImpl )ServiceFactory.newInstance();
 Service service = factory.createService(wsdlURL, qname, mappingURL, portName);

if you still get the problem, paste the error here.

R.K