@Override
    protected void chore() {
      try {
        verify();
      } catch (Throwable ex) {
        this.ex = ex;
        getStopper().stop("caught exception");
      }
    }
verify region boundaries obtained from HTable.getStartEndKeys()
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java