code: private static void showErrorMsg(boolean showError, String msgKey, Object[] objs) {
          if (showError) {
              String msg = Tr.formatMessage(TraceSpecification.getTc(), msgKey, objs);
              BaseTraceService.rawSystemErr.println(msg);
          }
      }
docs: Show the error message if showError is true
  
  @param showError
  @param msgKey
  @param objs