@Override
    public String toString() {
      return rootLocaleFormat(
          "Bar(%s, %s)", actionWhenFirstParamIsNull, actionWhenSecondParamIsNull);
    }
  }

  public void verifyBarPass(Method method, TwoArg bar) {
    try {
      new NullPointerTester().testMethod(bar, method);
    } catch (AssertionError incorrectError) {
      String errorMessage =