android/guava/src/com/google/common/base/Enums.java
public static <T extends Enum<T>> Converter<String, T> stringConverter(final Class<T> enumClass) {
    return new StringConverter<T>(enumClass);
  }
public static <T extends Enum<T>> Converter<String, T> stringConverter(final Class<T> enumClass) {
    return new StringConverter<T>(enumClass);
  }
Returns a converter that converts between strings and {@code enum} values of type {@code
enumClass} using {@link Enum#valueOf(Class, String)} and {@link Enum#name()}. The converter
will throw an {@code IllegalArgumentException} if the argument is not the name of any enum
constant in the specified enum.

@since 16.0