String createMobFileName(String oldFileName) {
    MobFileName mobFileName = MobFileName.create(oldFileName);
    String startKey = mobFileName.getStartKey();
    String date = mobFileName.getDate();
    return MobFileName
      .create(startKey, date, TEST_UTIL.getRandomUUID().toString().replaceAll("-", ""), "abcdef")
      .getFileName();
  }
Creates a new mob file name by the old one.
@param oldFileName The old mob file name.
@return The new mob file name.
hbase-server/src/test/java/org/apache/hadoop/hbase/util/BaseTestHBaseFsck.java