private transient int distinctElements;
  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) {

          ParameterHasNoDistinctValueException,
          IllegalAccessException,
          InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (cls.isEnum()) {
      return;
    }
    List<? extends Invokable<?, ?>> factories = Lists.reverse(getFactories(TypeToken.of(cls)));
    if (factories.isEmpty()) {
      return;
    }

   */
  @Test
  public void testEquals() throws Exception {
    for (Class<?> classToTest :
        findClassesToTest(loadClassesInPackage(), EQUALS_TEST_METHOD_NAMES)) {
      if (!classToTest.isEnum() && isEqualsDefined(classToTest)) {
        try {
          tester.doTestEquals(classToTest);
        } catch (Throwable e) {
          throw sanityError(classToTest, EQUALS_TEST_METHOD_NAMES, "equals test", e);

    if (implementation != null) {
      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);

      return defaultValue;
    }
    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);

   */
  @Test
  public void testEquals() throws Exception {
    for (Class<?> classToTest :
        findClassesToTest(loadClassesInPackage(), EQUALS_TEST_METHOD_NAMES)) {
      if (!classToTest.isEnum() && isEqualsDefined(classToTest)) {
        try {
          tester.doTestEquals(classToTest);
        } catch (Throwable e) {
          throw sanityError(classToTest, EQUALS_TEST_METHOD_NAMES, "equals test", e);

    Class<?> rawType = type.getRawType();
    List<Object> samples = sampleInstances.get(rawType);
    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());

    Class<?> rawType = type.getRawType();
    List<Object> samples = sampleInstances.get(rawType);
    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());

            new Foo("b", 1, null));
    for (Foo a : instances) {
      for (Foo b : instances) {
        int comparedUsingComparisonChain = signum(comparatorUsingComparisonChain.compare(a, b));
        int comparedUsingComparatorMethods = signum(comparatorUsingComparatorMethods.compare(a, b));
        assertWithMessage("%s vs %s", a, b)
            .that(comparedUsingComparatorMethods)

      int i = rnd.nextInt(left.length);
      left[i] ^= (byte) (1 + rnd.nextInt(255));
      assertThat(signum(comparator1.compare(left, right)))
          .isEqualTo(signum(UnsignedBytes.compare(left[i], right[i])));
      assertThat(signum(comparator2.compare(left, right)))
          .isEqualTo(signum(UnsignedBytes.compare(left[i], right[i])));
    }
  }