*
   * @param keyType the key type
   * @param valueType the value type
   */
  public static <K extends Enum<K>, V extends Enum<V>> EnumBiMap<K, V> create(
      Class<K> keyType, Class<V> valueType) {
    return new EnumBiMap<>(keyType, valueType);
  }

  /**
   * Returns a new bimap with the same mappings as the specified map. If the specified map is an

    assertEquals(Currency.class, bimap.keyType());
  }

  @GwtIncompatible // valueType
  public void testValueType() {
    EnumBiMap<Currency, Country> bimap = EnumBiMap.create(Currency.class, Country.class);
    assertEquals(Country.class, bimap.valueType());
  }

  public void testIterationOrder() {
    // The enum orderings are alphabetical, leading to the bimap and its inverse

    assertEquals(Currency.class, bimap.keyType());
  }

  @GwtIncompatible // valueType
  public void testValueType() {
    EnumBiMap<Currency, Country> bimap = EnumBiMap.create(Currency.class, Country.class);
    assertEquals(Country.class, bimap.valueType());
  }

  public void testIterationOrder() {
    // The enum orderings are alphabetical, leading to the bimap and its inverse

            new Entry<Integer, String>() {}.valueType(),
            new TypeToken<String>() {},
            new TypeToken<String>() {})
        .addEqualityGroup(
            TypeToken.of(Integer.class),
            new TypeToken<Integer>() {},
            new Entry<Integer, String>() {}.keyType(),
            new Entry<String, Integer>() {}.valueType())

            new Entry<Integer, String>() {}.valueType(),
            new TypeToken<String>() {},
            new TypeToken<String>() {})
        .addEqualityGroup(
            TypeToken.of(Integer.class),
            new TypeToken<Integer>() {},
            new Entry<Integer, String>() {}.keyType(),
            new Entry<String, Integer>() {}.valueType())