public int lastIndexOf(@Nullable Object target) {
      return target instanceof Long ? parent.lastIndexOf((Long) target) : -1;
    }

    @Override
    public List<Long> subList(int fromIndex, int toIndex) {
      return parent.subArray(fromIndex, toIndex).asList();
    }

    /*
     * This is an override that is not directly visible to callers, so NewApi will catch calls to
     * Collection.spliterator() where necessary.

      return target instanceof Integer ? parent.lastIndexOf((Integer) target) : -1;
    }

    @Override
    public List<Integer> subList(int fromIndex, int toIndex) {
      return parent.subArray(fromIndex, toIndex).asList();
    }

    @Override
    public Spliterator.OfInt spliterator() {
      return parent.spliterator();
    }

    @Override

      refreshIfEmpty();
      return new WrappedListIterator(index);
    }

    @Override
    public List<V> subList(int fromIndex, int toIndex) {
      refreshIfEmpty();
      return wrapList(
          getKey(),
          getListDelegate().subList(fromIndex, toIndex),
          (getAncestor() == null) ? this : getAncestor());
    }

    /** ListIterator decorator. */

      synchronized (mutex) {
        return delegate().set(index, element);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o == this) {
        return true;
      }

      synchronized (mutex) {
        delegate().sort(c);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o == this) {
        return true;
      }