Eaquals для HashMap

Map <String, Integer> settings1 =new HashMap<String, Integer>();
        settings1.put("first", 1);
        settings1.put("second", null);
        settings1.put("third", 3);
        settings1.put(null, 4);
        settings1.put("fifth", 5);
        System.out.println(settings1);
        
Map <String, Integer> settings2 = new HashMap<String, Integer>();
        settings2.put("first", 1);
        settings2.put("second", null);
        settings2.put("third", 3);
        settings2.put(null, 4);
        settings2.put("fifth", 5);
        System.out.println(settings2);
        
        System.out.println(settings1.hashCode());
        System.out.println(settings2.hashCode());

@Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null || getClass() != obj.getClass()) return false;
        if(obj instanceof Settings) {
            Settings o = (Settings) obj;
            if (this.hmap.size() != o.hmap.size())
                return false;
            else
                return this.hmap.hashCode() == o.hmap.hashCode() ? true : false;
            }
        return false;
        }

public boolean equals(Object obj) {
    return (obj instanceof Settings) && hmap.equals(((Settings)obj).hmap);
}