@Override
      public int compare(FileStatus o1, FileStatus o2) {
        return o1.getPath().getName().compareTo(o2.getPath().getName());
      }
Tests that tracker for all old logs are loaded back after procedure store is restarted.
hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestWALProcedureStore.java