return spliterator.getComparator();
    }

    final long getExactSizeIfKnown() {
      return spliterator.getExactSizeIfKnown();
    }

    final boolean hasCharacteristics(int characteristics) {
      return spliterator.hasCharacteristics(characteristics);
    }
  }

  private static final class GeneralSpliteratorOfObject<E extends @Nullable Object>
      extends GeneralSpliterator<E> {