I set up my webDriver with capabilities:
DesiredCapabilities ffCapabilities = DesiredCapabilities.firefox();
ffCapabilities.setCapability(CapabilityType.UNEXPECTED_ALERT_BEHAVIOUR, UnexpectedAlertBehaviour.ACCEPT);
driver = new FirefoxBrowser(ffCapabilities);
There is a page where alert should be dismissed. Is it possible to catch UNEXPECTED_ALERT_BEHAVIOUR with such catch:
private void waitNoContainer(int timeout) {
try {(new WebDriverWait(getDriver(), timeout)).
until(ExpectedConditions.invisibilityOfElementLocated(By.cssSelector(CssSelectors.WAIT_CONTAINER)));
} catch (UnhandledAlertException exc) {
driver.switchTo().alert().dismiss();
}