@Override
    public Optional<CompactionContext> selectCompaction() {
      this.blocked = new BlockingCompactionContext();
      try {
        this.blocked.select(null, false, false, false);
      } catch (IOException ex) {
        fail("Shouldn't happen");
      }
      return Optional.of(blocked);
    }
HBASE-7947: Regression test to ensure adding to the correct list in the {@link CompactSplit}
@throws Exception on failure
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompaction.java