return matcher.precomputedInternal();
  }

  static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
    WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);
    /*
     * We use `fromNullable` instead of `of` because `WeakReference.get()` has a nullable return
     * type.
     *

  private transient long size;

  /** Creates an empty {@code EnumMultiset}. */
  private EnumMultiset(Class<E> type) {
    this.type = type;
    checkArgument(type.isEnum());
    this.enumConstants = type.getEnumConstants();
    this.counts = new int[enumConstants.length];
  }

  private boolean isActuallyE(@Nullable Object o) {
    if (o instanceof Enum) {
      Enum<?> e = (Enum<?>) o;
      int index = e.ordinal();

    }
    enumConstantCache.put(enumClass, result);
    return result;
  }

  static <T extends Enum<T>> Map<String, WeakReference<? extends Enum<?>>> getEnumConstants(
      Class<T> enumClass) {
    synchronized (enumConstantCache) {
      Map<String, WeakReference<? extends Enum<?>>> constants = enumConstantCache.get(enumClass);
      if (constants == null) {

        @SuppressWarnings("rawtypes") // class literals
        Class<? extends Enum> theClass =
            Class.forName(CLASS_VALUE_VALIDATOR_NAME).asSubclass(Enum.class);
        return (GetCheckedTypeValidator) theClass.getEnumConstants()[0];
      } catch (ClassNotFoundException
          | RuntimeException
          | Error t) { // ensure we really catch *everything*
        return weakSetValidator();
      }
    }
  }

      return get(implementation);
    }
    if (type == Stream.class) {
      return type.cast(Stream.empty());
    }
    if (type.isEnum()) {
      T[] enumConstants = type.getEnumConstants();
      return (enumConstants == null || enumConstants.length == 0) ? null : enumConstants[0];
    }
    if (type.isArray()) {
      return createEmptyArray(type);
    }

      throws ParameterNotInstantiableException,
          IllegalAccessException,
          InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (cls.isEnum()) {
      T[] constants = cls.getEnumConstants();
      if (constants != null && constants.length > 0) {
        return constants[0];
      } else {
        return null;
      }
    }
    TypeToken<T> type = TypeToken.of(cls);

    }
    Class<? extends T> implementation = getImplementation(type);
    if (implementation != null) {
      return get(implementation);
    }
    if (type.isEnum()) {
      T[] enumConstants = type.getEnumConstants();
      return (enumConstants == null || enumConstants.length == 0) ? null : enumConstants[0];
    }
    if (type.isArray()) {
      return createEmptyArray(type);
    }

    Object sample = pickInstance(samples, null);
    if (sample != null) {
      return sample;
    }
    if (rawType.isEnum()) {
      return pickInstance(rawType.getEnumConstants(), null);
    }
    if (type.isArray()) {
      TypeToken<?> componentType = requireNonNull(type.getComponentType());
      Object array = Array.newInstance(componentType.getRawType(), 1);

    Object sample = pickInstance(samples, null);
    if (sample != null) {
      return sample;
    }
    if (rawType.isEnum()) {
      return pickInstance(rawType.getEnumConstants(), null);
    }
    if (type.isArray()) {
      TypeToken<?> componentType = requireNonNull(type.getComponentType());
      Object array = Array.newInstance(componentType.getRawType(), 1);

      throws ParameterNotInstantiableException,
          IllegalAccessException,
          InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (cls.isEnum()) {
      T[] constants = cls.getEnumConstants();
      if (constants != null && constants.length > 0) {
        return constants[0];
      } else {
        return null;
      }
    }
    TypeToken<T> type = TypeToken.of(cls);