public static void main(String[] args) throws IOException {
		List<String> list = new ArrayList<>(Arrays.asList("1", "2", "3", "4"));
		List<String> list1 = new ArrayList<>(Arrays.asList("1", "2", "3"));
		List<String> list2 = new ArrayList<>(Arrays.asList("1", "2"));
		List<String> list3 = new ArrayList<>(Collections.singletonList("1"));
		HashMap<String, List<String>> map = new HashMap<>();
		map.put("3", list3);
		map.put("2", list2);
		map.put("4", list1);
		map.put("1", list);

		Stream<Map.Entry<String, List<String>>> sorted =
			  map.entrySet().stream()
				    .sorted(Map.Entry.comparingByValue(Comparator.comparingInt(List::size)));


		Map<String, List<String>> sortedmap =  sorted.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (e1, e2) -> e1, LinkedHashMap::new));

		sortedmap.forEach((key, value)-> System.out.println(key + "  :  " + value));
	}