public WSDLReference createWSDLReference(BPELEngineImpl engine, QName processId, QName serviceName, String portName)
    {
      File targetWSDLFile = findWSDLFile(engine, processId, serviceName, portName);
      Definition wsdlDefinition = getWSDLDefinition(engine, processId, serviceName);
      return new WSDLReference(wsdlDefinition, targetWSDLFile.toURI());
    }
    private File findWSDLFile(BPELEngineImpl engine, QName processId, QName serviceName, String portName)
    {
      ProcessConf pconf = engine._store.getProcessConfiguration(processId);