code: static UfsJournalFile decodeTemporaryCheckpointFile(UfsJournal journal, String filename) {
      URI location = URIUtils.appendPathOrDie(journal.getTmpDir(), filename);
      return UfsJournalFile.createTmpCheckpointFile(location);
    }
docs: Decodes a temporary checkpoint file name into a {@link UfsJournalFile}.
  
  @param journal the UFS journal instance
  @param filename the temporary checkpoint file name
  @return the instance of {@link UfsJournalFile}