checkState(canRemoveOrSet);
          forwardIterator.set(e);
        }
      };
    }
  }

  private static final class RandomAccessReverseList<T extends @Nullable Object>
      extends ReverseList<T> implements RandomAccess {
    RandomAccessReverseList(List<T> forwardList) {
      super(forwardList);
    }
  }

  /** An implementation of {@link List#hashCode()}. */