code: static URI encodeCheckpointFileLocation(UfsJournal journal, long end) {
      String filename = String.format("0x%x-0x%x", 0, end);
      URI location = URIUtils.appendPathOrDie(journal.getCheckpointDir(), filename);
      return location;
    }
docs: Encodes a checkpoint location under the checkpoint directory.
  
  @param journal the UFS journal instance
  @param end the end sequence number (exclusive)
  @return the location