// Again, overriding for generics
@Override
public int compareTo(M o) {
final Map<K, V> thisMap = getValue();
final Map<K, V> otherMap = o.asMap();
final Set<K> thisKeySet = thisMap.keySet();
final Set<K> otherKeySet = otherMap.keySet();
final Collection<V> thisValueSet = thisMap.values();
final Collection<V> otherValueSet = otherMap.values();
return ComparisonChain.start()
.compare(thisKeySet.containsAll(otherKeySet), otherKeySet.containsAll(thisKeySet))
.compare(thisValueSet.containsAll(otherValueSet), otherValueSet.containsAll(thisValueSet))
.result();
}
