super(backingIterator);
  }

  private ListIterator<? extends F> backingIterator() {
    return (ListIterator<? extends F>) backingIterator;
  }

  @Override
  public final boolean hasPrevious() {
    return backingIterator().hasPrevious();
  }

  @Override
  @ParametricNullness
  public final T previous() {
    return transform(backingIterator().previous());
  }

  @Override
  public final int nextIndex() {

    super(backingIterator);
  }

  private ListIterator<? extends F> backingIterator() {
    return (ListIterator<? extends F>) backingIterator;
  }

  @Override
  public final boolean hasPrevious() {
    return backingIterator().hasPrevious();
  }

  @Override
  @ParametricNullness
  public final T previous() {
    return transform(backingIterator().previous());
  }

  @Override
  public final int nextIndex() {

    return Arrays.asList(hasNext, next, remove);
  }

  Stimulus<E, ListIterator<E>> hasPrevious =
      new Stimulus<E, ListIterator<E>>("hasPrevious") {
        @Override
        void executeAndCompare(ListIterator<E> reference, ListIterator<E> target) {
          assertEquals(reference.hasPrevious(), target.hasPrevious());
        }
      };
  Stimulus<E, ListIterator<E>> nextIndex =

    return Arrays.asList(hasNext, next, remove);
  }

  Stimulus<E, ListIterator<E>> hasPrevious =
      new Stimulus<E, ListIterator<E>>("hasPrevious") {
        @Override
        void executeAndCompare(ListIterator<E> reference, ListIterator<E> target) {
          assertEquals(reference.hasPrevious(), target.hasPrevious());
        }
      };
  Stimulus<E, ListIterator<E>> nextIndex =

        }

        @Override
        public boolean hasNext() {
            return iterator.hasNext();
        }

        @Override
        public boolean hasPrevious() {
            return iterator.hasPrevious();
        }

        @Override
        public T next() {
            lastElement = iterator.next();
            return lastElement;
        }

        @Override

          forwardIterator.previous();
          canRemoveOrSet = false;
        }

        @Override
        public boolean hasNext() {
          return forwardIterator.hasPrevious();
        }

        @Override
        public boolean hasPrevious() {
          return forwardIterator.hasNext();
        }

        @Override
        @ParametricNullness
        public T next() {
          if (!hasNext()) {

          forwardIterator.previous();
          canRemoveOrSet = false;
        }

        @Override
        public boolean hasNext() {
          return forwardIterator.hasPrevious();
        }

        @Override
        public boolean hasPrevious() {
          return forwardIterator.hasNext();
        }

        @Override
        @ParametricNullness
        public T next() {
          if (!hasNext()) {

                        queue.addFirst(list.get(i));
                    }
                } else {
                    ListIterator<?> iterator = list.listIterator(list.size());
                    while (iterator.hasPrevious()) {
                        Object item = iterator.previous();
                        queue.addFirst(item);
                    }
                }

        next = current.next;
      }
      removeNode(current);
      current = null;
      expectedModCount = modCount;
    }

    @Override
    public boolean hasPrevious() {
      checkForConcurrentModification();
      return previous != null;
    }

    @CanIgnoreReturnValue
    @Override
    public Node<K, V> previous() {
      checkForConcurrentModification();

            }

            @Override
            public E next() {
                return get(index++);
            }

            @Override
            public boolean hasPrevious() {
                return index > 0;
            }

            @Override
            public E previous() {
                return get(--index);
            }

            @Override