checkState(newMap instanceof MapMakerInternalMap);
        newMap.putAll(map);
        return newMap;
      }
    },
    MapMakerWeakKeysStrongValues {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        ConcurrentMap<K, V> newMap = new MapMaker().weakKeys().makeMap();

    Object six = new Object();

    map.put(one, two);
    map.put(one, three);
    assertNotified(listener, one, two, RemovalCause.REPLACED);

    Map<Object, Object> newMap = ImmutableMap.of(one, four);
    map.putAll(newMap);
    assertNotified(listener, one, three, RemovalCause.REPLACED);

    map.replace(one, five);
    assertNotified(listener, one, four, RemovalCause.REPLACED);