@Override
        public Void run() {
          try {
            HFileOutputFormat2.configurePartitioner(job, splitPoints, false);
          } catch (IOException ioe) {
            LOG.error("Failed to configure partitioner", ioe);
          }
          return null;
        }
This test is to test the scenario happened in HBASE-6901. All files are bulk loaded and
excluded from minor compaction. Without the fix of HBASE-6901, an
ArrayIndexOutOfBoundsException will be thrown.
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHFileOutputFormat2.java