Taking a screenshot if test failed using Page Object TestNG

I have the next code to take screenshots

   public void takeScreenShotOnFailure(ITestResult testResult) throws IOException {

    if (testResult.getStatus() == ITestResult.FAILURE) {
        System.out.println(testResult.getStatus());
        File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
        FileUtils.copyFile(scrFile, new File("errorScreenshots\\" + testResult.getName() + "-"
                + Arrays.toString(testResult.getParameters()) +  ".jpg"));
    }
}

And it works correctly if I put it into @AfterMethod, but I use PageObject, so I need to put it like a method into the BaseTest and just call it in my @AfterMethod. But when I call it, I have the problem that I do not have anything to put in method`s parameter. If I declare variable testResult like this

ITestResult testResult = new ITestResult();

I have a lot of overridden methods, but it still doesn`t work. What I need to remade for correctly work.