Java HashMap をその値で昇順および降順に並べ替えるにはどうすればよいですか?

import java.util.*;

public class HashMapSorting {
    private static final boolean ASC = true;
    private static final boolean DESC = false;

    public static void main(String[] args) {
        // Creating dummy unsorted HashMap
        HashMap<String, Integer> unsortedMap = new HashMap<>();
        unsortedMap.put("B", 55);
        unsortedMap.put("A", 80);
        unsortedMap.put("D", 20);
        unsortedMap.put("C", 70);

        System.out.println("Before sorting...");
        printMap(unsortedMap);

        System.out.println("After sorting ascending order...");
        Map<String, Integer> sortedMapAsc = sortByValue(unsortedMap, ASC);
        printMap(sortedMapAsc);

        System.out.println("After sorting descending order...");
        Map<String, Integer> sortedMapDesc = sortByValue(unsortedMap, DESC);
        printMap(sortedMapDesc);
    }

    private static <K extends Comparable<K>, V extends Comparable<V>> Map<K, V> sortByValue(Map<K, V> unsorted, final boolean order) {
        List<Map.Entry<K, V>> list = new LinkedList<>(unsorted.entrySet());

        list.sort((o1, o2) -> order
                ? o1.getValue().compareTo(o2.getValue()) == 0
                  ? o1.getKey().compareTo(o2.getKey())
                  : o1.getValue().compareTo(o2.getValue())
                : o2.getValue().compareTo(o1.getValue()) == 0
                  ? o2.getKey().compareTo(o1.getKey())
                  : o2.getValue().compareTo(o1.getValue()));
        return list.stream().collect(
                Collectors.toMap(
                        Map.Entry::getKey, Map.Entry::getValue, (a, b) -> b, LinkedHashMap::new
                )
        );
    }

    private static void printMap(Map<String, Integer> map) {
        for (Map.Entry<String, Integer> entry : map.entrySet()) {
            System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
        }
    }
}