@Override
  public ByteRange unset() {
    clearHashCache();
    bytes = null;
    offset = 0;
    length = 0;
    return this;
  }
Create a new {@code ByteRange} over the provided {@code bytes}. The array to wrap. The offset
into {@code bytes} considered the beginning of this range. The length of this range.
hbase-common/src/main/java/org/apache/hadoop/hbase/util/SimpleMutableByteRange.java