static HbckRegionInfo genHbckInfo(TableName table, byte[] start, byte[] end, int time) {
    return new HbckRegionInfo(new MetaEntry(
      RegionInfoBuilder.newBuilder(table).setStartKey(start).setEndKey(end).build(), null, time));
  }
Test the comparator used by Hbck.
hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestHBaseFsckComparator.java