SIMON T BO

 @Override
    public List<Entry<Article, Integer>> listerStock() {
        List l = new LinkedList<>(stock.entrySet());
        l.sort(new Comparator() {
            @Override
            public int compare(Object o1, Object o2) {
                Entry<Article, Integer> a1 = (Entry<Article, Integer>) o1;
                Entry<Article, Integer> a2 = (Entry<Article, Integer>) o2;
                return a1.getKey().nom().compareTo(a2.getKey().nom());
            }
        });
        return l;
    }