*     mappings
   */
  public static <K extends Enum<K>, V extends Enum<V>> EnumBiMap<K, V> create(Map<K, V> map) {
    EnumBiMap<K, V> bimap =
        create(inferKeyTypeOrObjectUnderJ2cl(map), inferValueTypeOrObjectUnderJ2cl(map));
    bimap.putAll(map);
    return bimap;
  }

  private EnumBiMap(Class<K> keyTypeOrObjectUnderJ2cl, Class<V> valueTypeOrObjectUnderJ2cl) {
    super(

   */
  public static <K extends Enum<K>, V extends @Nullable Object> EnumHashBiMap<K, V> create(
      Map<K, ? extends V> map) {
    EnumHashBiMap<K, V> bimap = create(EnumBiMap.inferKeyTypeOrObjectUnderJ2cl(map));
    bimap.putAll(map);
    return bimap;
  }

  private EnumHashBiMap(Class<K> keyType) {
    super(new EnumMap<K, V>(keyType), new HashMap<V, K>());