@Keep
    public FailOnOneOfTwoConstructors(String s) {}

    @Keep
    public FailOnOneOfTwoConstructors(Object o) {
      checkNotNull(o);
    }
  }

  public void testConstructor_ignored_shouldPass() throws Exception {
    new NullPointerTester()
        .ignore(FailOnOneOfTwoConstructors.class.getDeclaredConstructor(String.class))
        .testAllPublicConstructors(FailOnOneOfTwoConstructors.class);