[Axis2] Newbie Question , Can't get the response !!

[Krishan Jayawardhana]

Hi,
   I am very new to Axis 2 and after going through the documentation
, i wrote a add service to get used to axis2. I wrote the service
class and generated the wsdl from it using using the Java2WSDL tool ,
and client stubs using WSDL2Java tool. After I deployed the service, I
get an exception saying "java.lang.RuntimeException: Unexpected
subelement return" , which is generated in the Clint stub. What is the
cause of this exception ? am I implementing the client and the service
the correct way ? Thank you very much in advance ....
    ~ Krishan

---------------------------------------- Service Method
-------------------------------------------------------

public static OMElement add ( OMElement elem )
   {
      Iterator iter = elem.getChildElements();

      OMElement root = (OMElement)iter.next();

      Iterator iter2 = root.getChildElements();
      String param1Str = ((OMElement)iter2.next()).getText();
      String param2Str = ((OMElement)iter2.next()).getText();
      int answer = Integer.parseInt(param1Str) + Integer.parseInt(param2Str);


      OMFactory factory = OMAbstractFactory.getOMFactory();
      OMNamespace ns1 = factory.createOMNamespace
("http://services.axis2.test/xsd","ns1";);

      OMElement responce = factory.createOMElement("addResponse",ns1);
      OMElement result = factory.createOMElement("return",ns1);
      result.setText(String.valueOf(answer));

      responce.addChild(result);

      return responce;

   }


------------------------------------------ Client Code
-------------------------------------------------------

           AddServiceStub service = new AddServiceStub(null,
"http://localhost:7077/axis2/services/AddService";);
           AddServiceStub.Add paramOne = new AddServiceStub.Add();

           OMFactory factory = OMAbstractFactory.getOMFactory();
           OMNamespace ns5 =
factory.createOMNamespace("http://somenamespace","ns5";);
           OMElement paramArray = factory.createOMElement("root",ns5);

           OMElement arg0 = factory.createOMElement("argO",ns5);
           arg0.setText("2");

           OMElement arg1 = factory.createOMElement("arg1",ns5);
           arg1.setText("3");

           paramArray.addChild(arg0);
           paramArray.addChild(arg1);

           paramOne.setElem(paramArray);

           AddServiceStub.AddResponse responce = service.add(paramOne);

           OMElement returnValue = responce.get_return();

           System.out.println(returnValue.getText());

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