HashMapImpl {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        return new HashMap<>(map);
      }
    },
    LinkedHashMapImpl {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        return new LinkedHashMap<>(map);
      }
    },
    ConcurrentHashMapImpl {
      @Override