@Keep
    public static Object bad(String a, int b, @Nullable OneConstantEnum oneConstantOnly) {
      return new GoodEquals(a, b);
    }
  }

  public void testNullsOnReturnValues_good() throws Exception {
    tester.forAllPublicStaticMethods(GoodNullsFactory.class).testNulls();
  }

  private static class GoodNullsFactory {
    @Keep
    public static Object good(String s) {