private void setOffset(long value) {
    assert (value & 0xFF) == 0;
    value >>= 8;
    offsetBase = (int) value;
    offset1 = (byte) (value >> 32);
  }
@param createRecycler used to free this {@link BucketEntry} when {@link BucketEntry#refCnt}
                      becoming 0. NOTICE that {@link ByteBuffAllocator#NONE} could only be used
                      for test.
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketEntry.java