Answer by Alex Langer for unknown error: Chrome failed to start: exited abnormally (Driver info: chromedriver=2.9

1. Check that you use ChromeDriver version that corresponds to your Chrome version
2. In case you are on Linux without graphical interface "headless" mode must be used

Example of WebDriverSettings.java :

...ChromeOptions options = new ChromeOptions();options.setExperimentalOption("prefs", chromePrefs);options.addArguments("--no-sandbox");options.addArguments("--headless"); //!!!should be enabled for Jenkinsoptions.addArguments("--disable-dev-shm-usage"); //!!!should be enabled for Jenkinsoptions.addArguments("--window-size=1920x1080"); //!!!should be enabled for Jenkinsdriver = new ChromeDriver(options);...