WSIFService portFactory = WSIFServiceFactory.newInstance().getService(serviceDefintion, importService, importPortType);
WSIFPort port = portFactory.getPort();
WSIFOperation operation = port.createOperation(GET_DEFINITION_OPERATION);
WSIFMessage inputMessage = operation.createInputMessage();
WSIFMessage outputMessage = operation.createOutputMessage();
inputMessage.setObjectPart(PORT_TYPE_SELECTION_PART, portTypeSelection);
operation.executeRequestResponseOperation(inputMessage, outputMessage, null);