.addEqualityGroup(Predicates.instanceOf(Number.class))
        .addEqualityGroup(Predicates.instanceOf(Float.class))
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // Predicates.instanceOf, SerializableTester
  public void testIsInstanceOf_serialization() {
    checkSerialization(Predicates.instanceOf(Integer.class));
  }

  @J2ktIncompatible

   * example, {@code instanceOf(ArrayList.class)} will yield different results for the two equal
   * instances {@code Lists.newArrayList(1)} and {@code Arrays.asList(1)}.
   */
  @GwtIncompatible // Class.isInstance
  public static <T extends @Nullable Object> Predicate<T> instanceOf(Class<?> clazz) {
    return new InstanceOfPredicate<>(clazz);
  }

  /**

    assertTrue(descendingSet instanceof SynchronizedNavigableSet);
    assertSame(set, ((SynchronizedNavigableSet<String>) descendingSet).mutex);
  }

  public void testHeadSet_E() {
    NavigableSet<String> set = create();
    SortedSet<String> headSet = set.headSet("a");
    assertTrue(headSet instanceof SynchronizedSortedSet);

    assertTrue(descendingSet instanceof SynchronizedNavigableSet);
    assertSame(MUTEX, ((SynchronizedNavigableSet<String>) descendingSet).mutex);
  }

  public void testHeadSet_E() {
    NavigableSet<String> map = create();
    SortedSet<String> headSet = map.headSet("a");
    assertTrue(headSet instanceof SynchronizedSortedSet);

      boolean succeeded = false;
      try {
        if (type instanceof TypeVariable) {
          visitTypeVariable((TypeVariable<?>) type);
        } else if (type instanceof WildcardType) {
          visitWildcardType((WildcardType) type);
        } else if (type instanceof ParameterizedType) {
          visitParameterizedType((ParameterizedType) type);
        } else if (type instanceof Class) {
          visitClass((Class<?>) type);

   * this parameter is marked nullable, this method does nothing.
   *
   * @param instance the instance to invoke {@code method} on, or null if {@code method} is static
   */
  public void testMethodParameter(@Nullable Object instance, Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**

    assertEquals(2, factory.count);
    assertEquals("{BLUE=[3, 1, 4, 1], RED=[2, 7, 1, 8]}", multimap.toString());
    assertFalse(multimap.get(Color.BLUE) instanceof RandomAccess);

    assertTrue(multimap.keySet() instanceof SortedSet);
    assertTrue(multimap.asMap() instanceof SortedMap);
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testNewListMultimapSerialization() {

    for (Collection<V> valueCollection : multimap().asMap().values()) {
      assertTrue(valueCollection instanceof Set);
    }
  }

  public void testAsMapGetImplementsSet() {
    for (K key : multimap().keySet()) {
      assertTrue(multimap().asMap().get(key) instanceof Set);
    }
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  public void testAsMapRemoveImplementsSet() {

    for (Collection<V> valueCollection : multimap().asMap().values()) {
      assertTrue(valueCollection instanceof List);
    }
  }

  public void testAsMapGetImplementsList() {
    for (K key : multimap().keySet()) {
      assertTrue(multimap().asMap().get(key) instanceof List);
    }
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  public void testAsMapRemoveImplementsList() {

      this.instance = instance;
    }

    @Override
    @ParametricNullness
    public T get() {
      return instance;
    }

    @Override
    public boolean equals(@CheckForNull Object obj) {
      if (obj instanceof SupplierOfInstance) {
        SupplierOfInstance<?> that = (SupplierOfInstance<?>) obj;
        return Objects.equal(instance, that.instance);
      }
      return false;
    }