docs: private File retryDownload(String localFileDirTemp, String fileName, RemoteUrl remoteUrl, int retryTimes, int
              retrySleepSeconds)
              throws Exception {
  
          if (localFileDirTemp == null) {
              localFileDirTemp = "./disconf/download";
          }
          String tmpFilePath = OsUtil.pathJoin(localFileDirTemp, fileName);
          String tmpFilePathUnique = MyStringUtils.getRandomName(tmpFilePath);
          File tmpFilePathUniqueFile = new File(tmpFilePathUnique);
          retry4ConfDownload(remoteUrl, tmpFilePathUniqueFile, retryTimes, retrySleepSeconds);
  
          return tmpFilePathUniqueFile;
      }