return reverse(forwardList.subList(reversePosition(toIndex), reversePosition(fromIndex)));
    }

    @Override
    public Iterator<T> iterator() {
      return listIterator();
    }

    @Override
    public ListIterator<T> listIterator(int index) {
      int start = reversePosition(index);
      final ListIterator<T> forwardIterator = forwardList.listIterator(start);