@Keep private final Object notSerializable = new Object();
      };
    }

    private BadSerializableFactory() {}
  }

  public void testEqualsAndSerializableOnReturnValues_equalsIsGoodButNotSerializable()
      throws Exception {
    try {
      tester.forAllPublicStaticMethods(GoodEqualsFactory.class).testEqualsAndSerializable();
    } catch (AssertionError expected) {
      return;