How to close the cookie banner using Selenium

There is a cookie on this page which i have tried to close using selenium java and testNG but not closing. The url is https://hausrat.allianz.de/

Below is my code:

public void closeCookieNotification() {//*[@id="onetrust-accept-btn-handler"]
        try {
            // Check if the cookie notification element is present
            WebElement cookieNotification = driver.findElement(By.xpath("//*[@id=\"onetrust-accept-btn-handler\"]"));

            // Close the cookie notification if present
            if (cookieNotification.isDisplayed()) {
                WebElement closeButton = driver.findElement(By.xpath("//*[@id=\"onetrust-accept-btn-handler\"]"));
                closeButton.click();
            }
        } catch (Exception e) {
            // Cookie notification not present or error occurred while closing, ignore
            System.out.println(e.getMessage());
        }
    }

You should use WebDriverWait in this case until consent modal is appeared.
findElement is executed immediately, and consent is not appeared direct after site load.

You can try this code:

<!-- begin snippet: java hide: false console: true babel: false -->

<!-- language: lang-java -->

WebDriverWait wdwait = new WebDriverWait(driver, 10);

driver.get("https://www.allianz.de/recht-und-eigentum/hausratversicherung/");
WebElement consent = wdwait.until(ExpectedConditions.visibilityOfElementLocated(By.id("onetrust-accept-btn-handler")));
consent.click();
wdwait.until(ExpectedConditions.invisibilityOf(consent));

<!-- end snippet -->

The element is a dynamic element so to click on the clickable element you need to induce WebDriverWait for the elementToBeClickable() and you can use either of the following locator strategies:

• Using id:

  driver.get("https://hausrat.allianz.de/");
  new WebDriverWait(driver, Duration.ofSeconds(10)).until(ExpectedConditions.elementToBeClickable(By.id("onetrust-accept-btn-handler"))).click();
  

• Using cssSelector:

  driver.get("https://hausrat.allianz.de/");
  new WebDriverWait(driver, Duration.ofSeconds(10)).until(ExpectedConditions.elementToBeClickable(By.cssSelector("button#onetrust-accept-btn-handler"))).click();
  

• Using xpath:

  driver.get("https://hausrat.allianz.de/");
  new WebDriverWait(driver, Duration.ofSeconds(10)).until(ExpectedConditions.elementToBeClickable(By.xpath("//button[@id='onetrust-accept-btn-handler']"))).click();