*     instance and contains no mappings
   */
  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) {

   *     instance and contains no mappings
   */
  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) {

            Currency.PESO, "peso",
            Currency.FRANC, "franc");
    EnumHashBiMap<Currency, String> bimap = EnumHashBiMap.create(map);
    assertEquals("dollar", bimap.get(Currency.DOLLAR));
    assertEquals(Currency.DOLLAR, bimap.inverse().get("dollar"));

    /* Map must have at least one entry if not an EnumHashBiMap. */
    try {
      EnumHashBiMap.create(Collections.<Currency, String>emptyMap());

            Currency.PESO, "peso",
            Currency.FRANC, "franc");
    EnumHashBiMap<Currency, String> bimap = EnumHashBiMap.create(map);
    assertEquals("dollar", bimap.get(Currency.DOLLAR));
    assertEquals(Currency.DOLLAR, bimap.inverse().get("dollar"));

    /* Map must have at least one entry if not an EnumHashBiMap. */
    try {
      EnumHashBiMap.create(Collections.<Currency, String>emptyMap());

    if (map instanceof EnumBiMap) {
      return ((EnumBiMap<K, ?>) map).keyTypeOrObjectUnderJ2cl;
    }
    if (map instanceof EnumHashBiMap) {
      return ((EnumHashBiMap<K, ?>) map).keyTypeOrObjectUnderJ2cl;
    }
    checkArgument(!map.isEmpty());
    return getDeclaringClassOrObjectForJ2cl(map.keySet().iterator().next());
  }

    if (map instanceof EnumBiMap) {
      return ((EnumBiMap<K, ?>) map).keyTypeOrObjectUnderJ2cl;
    }
    if (map instanceof EnumHashBiMap) {
      return ((EnumHashBiMap<K, ?>) map).keyTypeOrObjectUnderJ2cl;
    }
    checkArgument(!map.isEmpty());
    return getDeclaringClassOrObjectForJ2cl(map.keySet().iterator().next());
  }

 *
 * <h3>Implementations</h3>
 *
 * <ul>
 *   <li>{@link ImmutableBiMap}
 *   <li>{@link HashBiMap}
 *   <li>{@link EnumBiMap}
 *   <li>{@link EnumHashBiMap}
 * </ul>
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#bimap">{@code BiMap}</a>.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */

 *
 * <h3>Implementations</h3>
 *
 * <ul>
 *   <li>{@link ImmutableBiMap}
 *   <li>{@link HashBiMap}
 *   <li>{@link EnumBiMap}
 *   <li>{@link EnumHashBiMap}
 * </ul>
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#bimap">{@code BiMap}</a>.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */

      EnumBiMap.create(Collections.<Currency, Country>emptyMap());
      fail("IllegalArgumentException expected");
    } catch (IllegalArgumentException expected) {
    }
    try {
      EnumBiMap.create(EnumHashBiMap.<Currency, Country>create(Currency.class));
      fail("IllegalArgumentException expected");
    } catch (IllegalArgumentException expected) {
    }

    /* Map can be empty if it's an EnumBiMap. */

      EnumBiMap.create(Collections.<Currency, Country>emptyMap());
      fail("IllegalArgumentException expected");
    } catch (IllegalArgumentException expected) {
    }
    try {
      EnumBiMap.create(EnumHashBiMap.<Currency, Country>create(Currency.class));
      fail("IllegalArgumentException expected");
    } catch (IllegalArgumentException expected) {
    }

    /* Map can be empty if it's an EnumBiMap. */