@Override
  public PositionedByteRange get(int index, byte[] dst) {
    super.get(index, dst);
    return this;
  }
Update the length of this range. {@code offset + length} should not be greater than
{@code bytes.length}. If {@code position} is greater than the new {@code length}, sets
{@code position} to {@code length}. The new length of this range.
@return this.
hbase-common/src/main/java/org/apache/hadoop/hbase/util/SimplePositionedMutableByteRange.java