int i = 0;
      for (Object e : elements) {
        array[i++] = (Byte) e;
      }
      return create(array);
    }

    /**
     * Creates a new collection containing the given elements; implement this method instead of
     * {@link #create(Object...)}.
     */
    protected abstract List<Byte> create(Byte[] elements);

    @Override
    public Byte[] createArray(int length) {

      int i = 0;
      for (Object e : elements) {
        array[i++] = (Byte) e;
      }
      return create(array);
    }

    /**
     * Creates a new collection containing the given elements; implement this method instead of
     * {@link #create(Object...)}.
     */
    protected abstract List<Byte> create(Byte[] elements);

    @Override
    public Byte[] createArray(int length) {