public LinkedList<Integer> getImpl() {
      return new LinkedList<>();
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  public void testNewListMultimap() {
    CountingSupplier<LinkedList<Integer>> factory = new ListSupplier();
    Map<Color, Collection<Integer>> map = Maps.newTreeMap();
    ListMultimap<Color, Integer> multimap = Multimaps.newListMultimap(map, factory);