} catch (AssertionError expected) {
      return;
    }
    fail("should have failed");
  }

  public void testEqualsAndSerializableOnReturnValues_serializableButNotEquals() throws Exception {
    try {
      tester.forAllPublicStaticMethods(GoodSerializableFactory.class).testEqualsAndSerializable();
    } catch (AssertionError expected) {

  // (I suspect that this and the other similar failures happen with ArbitraryInstances proxies.)
  public void testEqualsAndSerializable() throws Exception {
    new ClassSanityTester().forAllPublicStaticMethods(Functions.class).testEqualsAndSerializable();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  private static <Y> void checkCanReserialize(Function<? super Integer, Y> f) {

  // (I suspect that this and the other similar failures happen with ArbitraryInstances proxies.)
  public void testEqualsAndSerializable() throws Exception {
    new ClassSanityTester().forAllPublicStaticMethods(Functions.class).testEqualsAndSerializable();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  private static <Y> void checkCanReserialize(Function<? super Integer, Y> f) {

  @GwtIncompatible // reflection
  @AndroidIncompatible // TODO(cpovirk): ClassNotFoundException: com.google.common.base.Function
  public void testEqualsAndSerializable() throws Exception {
    new ClassSanityTester().forAllPublicStaticMethods(Predicates.class).testEqualsAndSerializable();
  }

  private static void assertEvalsToTrue(Predicate<? super @Nullable Integer> predicate) {
    assertTrue(predicate.apply(0));

     *
     * @return this tester
     */
    @CanIgnoreReturnValue
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    public FactoryMethodReturnValueTester testEqualsAndSerializable() throws Exception {
      for (Invokable<?, ?> factory : getFactoriesToTest()) {
        try {
          testEqualsUsing(factory);
        } catch (FactoryMethodReturnsNullException e) {

     *
     * @return this tester
     */
    @CanIgnoreReturnValue
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    public FactoryMethodReturnValueTester testEqualsAndSerializable() throws Exception {
      for (Invokable<?, ?> factory : getFactoriesToTest()) {
        try {
          testEqualsUsing(factory);
        } catch (FactoryMethodReturnsNullException e) {