private void setFaultCode(
      MessageContext synCtx, SOAPFactory factory, SOAPFault fault, int soapVersion) {

    QName fault_code = null;

    if (faultCodeValue == null && faultCodeExpr == null) {
      handleException("A valid fault code QName value or expression is required", synCtx);
    } else if (faultCodeValue != null) {
      fault_code = faultCodeValue;
    } else {
      String codeStr = faultCodeExpr.stringValueOf(synCtx);
      fault_code = new QName(fault.getNamespace().getNamespaceURI(), codeStr);
    }

    SOAPFaultCode code = factory.createSOAPFaultCode();
    switch (soapVersion) {
      case SOAP11:
        code.setText(fault_code);
        break;
      case SOAP12:
        SOAPFaultValue value = factory.createSOAPFaultValue(code);
        value.setText(fault_code);
        break;
    }
    fault.setCode(code);
  }