* {@link #create(Object...)}.
     */
    protected abstract List<Byte> create(Byte[] elements);

    @Override
    public Byte[] createArray(int length) {
      return new Byte[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Byte> order(List<Byte> insertionOrder) {
      return insertionOrder;

     * {@link #create(Object...)}.
     */
    protected abstract List<Byte> create(Byte[] elements);

    @Override
    public Byte[] createArray(int length) {
      return new Byte[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Byte> order(List<Byte> insertionOrder) {
      return insertionOrder;