}

    @Override
    public int size() {
      return backingList.size();
    }
  }

  private static class RandomAccessListWrapper<E extends @Nullable Object>
      extends AbstractListWrapper<E> implements RandomAccess {
    RandomAccessListWrapper(List<E> backingList) {
      super(backingList);
    }
  }

  /** Used to avoid http://bugs.sun.com/view_bug.do?bug_id=6558557 */