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RemoteWebDriver is null error (sauce labs implementation) -selenium,cucumber,java

I am implementing my code to work on remote machines on Sauce Labs. The code worked fine until I have changed my driver initialisation (to work with remote server). I keep getting this.driver is null exception. I don't know what's wrong with it, I was following official documentation and tried many things. I hope someone can see the issue here. Thank you in advance. My code:
DRIVER:(my username and key are copied from my sauce labs account, renamed for this purpose)
public class Hooks {
public RemoteWebDriver driver;
public WebDriverWait wait;
#Before
public void setup(Scenario scenario) throws MalformedURLException {
String username = System.getenv("my username");
String accessKey = System.getenv("key");
ChromeOptions chromeOpts = new ChromeOptions();
MutableCapabilities sauceOpts = new MutableCapabilities();
sauceOpts.setCapability("name", scenario.getName());
sauceOpts.setCapability("username", username);
sauceOpts.setCapability("accessKey",accessKey);
MutableCapabilities browserOptions = new MutableCapabilities();
browserOptions.setCapability(ChromeOptions.CAPABILITY, chromeOpts);
browserOptions.setCapability("sauce:options", sauceOpts);
browserOptions.setCapability("browserName", "chrome");
browserOptions.setCapability("browserVersion", "latest");
browserOptions.setCapability("platformName", "Windows 10");
String sauceUrl = "https://ondemand.us-west-1.saucelabs.com:443/wd/hub";
URL url = new URL(sauceUrl);
driver = new RemoteWebDriver(url, browserOptions);
wait = new WebDriverWait(driver, Duration.ofSeconds(10));
}
#After
public void tearDown(Scenario scenario) {driver.quit();}
}
PAGE OBJECT WHERE MY CODE IS: (shortened for privacy purposes)
public class LandingPO extends Hooks {
static RemoteWebDriver driver;
static WebDriverWait wait;
String url = "https://google.com"
public void openUrl() {
driver.get(url);}
And then I just call this method (landingPO.openUrl();) in my stepDefinition class.
The error is thrown where first driver usage is found:
Step failed
java.lang.NullPointerException: Cannot invoke "org.openqa.selenium.remote.RemoteWebDriver.get(String)" because "pageObjects.LandingPO.driver" is null
it breaks right at "driver.get(url)" in my LandingPO

If anyone will have the same problem, the answer was:
I was using wrong Before/After import. The correct import should be:
import io.cucumber.java.After;
import io.cucumber.java.Before;

Not able to click on permission pop-up (Access Contact List) in appium

I am new to Appium.
I am trying to automate an application which on launch asks to allow to access Contact List. I did research on various websites for the solution but couldn`t resole this issue.
Code:
public class TestSuiteBase {
WebDriver driver = null;
//Element Variables
String deviceIdTextbox = "et_Registration_DeviceID";
#BeforeClass
public void setup() throws MalformedURLException, InterruptedException {
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability("platformName", "Android");
capabilities.setCapability("platformVersion", "4.4.2");
capabilities.setCapability("deviceName", "0ef3c26f");
capabilities.setCapability("browserName", "");
capabilities.setCapability("app", "D:\\Ashish\\AppiumProject\\Mobile Framework\\apk\\androidApplication.apk");
capabilities.setCapability("appPackage", "com.atyati.rbl.mfi");
capabilities.setCapability("appActivity", "com.atyati.rbl.mfi.Activity.SplashScreenActivity");
AndroidDriver driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
driver.manage().timeouts().implicitlyWait(80, TimeUnit.SECONDS);
Thread.sleep(10000);
}
#Test
public void Test() throws Exception {
Thread.sleep(2000);
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability("appWaitPackage", "com.android.packageinstaller");
capabilities.setCapability("appWaitActivity", ".permission.ui.GrantPermissionsActivity");
System.out.println("Trying to click Allow");
driver.findElement(MobileBy.id("permission_allow_button")).click();
driver.findElement(By.id(deviceIdTextbox)).sendKeys("123456789");
}
#AfterClass
public void tearDown() throws Exception {
driver.quit();
}
Output: My code launches the app but when permission pop-up surfaces, it is unable to click.
Issue: Not able click on permission pop-up.
Query: Do I need to specify "appActivity" before moving to each screen?
Let me know if any other details needed.

I have figured it out where I was going wrong.
Solution: I have to specify the complete resource id for the Edit Textbox
String deviceIdTextbox = "com.atyati.rbl.mfi:id/et_Registration_DeviceID";
Also, it is not needed to specify the activity.
#Test
public void Test() throws Exception {
Thread.sleep(1000);
if(androidDriver!=null){
System.out.println("driver does not == null");
System.out.println("Trying to click Allow");
androidDriver.findElement(By.id(contactListAllowPermissionBtn)).click();
Thread.sleep(1000);
androidDriver.findElement(By.id(deviceIdTextbox)).sendKeys("123456789");
androidDriver.findElement(By.id(registerUserBtn)).click();
} else {
System.out.println("driver == null");
}
}

You can use this JAVA CODE for clicking on allow app permission button as many times it appears. just add the method and in your class file and call the method in your test case. This code is taken from example on THIS POST
public void allowAppPermission(){
while (driver.findElements(MobileBy.xpath("//*[#class='android.widget.Button'][2]")).size()>0)
{ driver.findElement(MobileBy.xpath("//*[#class='android.widget.Button'][2]")).click();
}
}

selenium script unable to run

WebDriver driver;
String baseUrl = "http://example.com";
#BeforeClass
public void beforeClass() {
System.setProperty("webdriver.firefox.marionette","local path to geckodriver-v0.10.0-win64");
DesiredCapabilities capabilities = DesiredCapabilities.firefox();
capabilities.setCapability("marionette", true);
driver = new FirefoxDriver();
}
#Test
public void login() throws InterruptedException {
driver.get(baseUrl);
Thread.sleep(3000);
}
#AfterClass
public void afterClass() {
}
this code I am trying to run using TestNG tool but it's failing.
It runs perfectly when using it as Java Application but I want to run this script as a TestNG script

Selenium WebDriver using TestNG and Excel

Hello i really need help with Selenium WebDriver using TestNG and Excel
i try to get data from excel to open browser and navigate URL. its work successfully and terminal and testng report showing test pass but its not open browser or doing anything its just run its self and show report
Config File
public void openBrowser(String browser){
try {
if (browser.equals("Mozilla")) {
driver = new FirefoxDriver();
} else if(browser.equals("IE")){
driver = new InternetExplorerDriver();
} else if(browser.equals("Chrome")){
System.setProperty("webdriver.chrome.driver", "\\Applications\\Google Chrome.app\\Contents\\MacOS\\Google Chrome ");
driver = new ChromeDriver();
}
} catch (Exception e) {
}
}
public void navigate(String baseUrl){
try {
driver.manage().window().maximize();
driver.manage().deleteAllCookies();
driver.navigate().to(baseUrl);
} catch (Exception e) {
}
}
And Test Execute File
public class NewTest {
public String exPath = Config.filePath;
public String exName = Config.fileName;
public String exWrSheet = "Logiin Functional Test";
public Config config;
#BeforeTest
public void openBrowser() {
config = new Config();
Excel.setExcelFile(exPath+exName, exWrSheet);
String browser = Excel.getCellData(1, 2);
config.openBrowser(browser);
}
#BeforeMethod
public void navigate() {
config = new Config();
Excel.setExcelFile(exPath+exName, exWrSheet);
String baseUrl = Excel.getCellData(2, 2);
config.navigate(baseUrl);
}
#Test
public void test() {
System.out.println("Test");
}
#AfterTest
public void closeBroser() {
//Config.tearDown();
}

I don't have quite enough rep to make a comment, which I would prefer here, but if you aren't getting any sort of exception, I'd suspect the value you're getting for the browser variable is not matching anything in your if-then-else in openBrowser and then falling through. Step through the code with a debugger or just add:
String browser = Excel.getCellData(1, 2);
System.out.println("Browser value from Excel =" + browser);
config.openBrowser(browser);
to see what you're reading from the file.

1 - TestNg is always pass because you are using "void" method and you catch "all" exception
2 - No browser opened because in openBrowser(String browser), NullPointException throws and you already catch it.
-> you need to init an instance of WebDriver and pass it through your test.

Can I open 2 Firefox Drivers on 2 Screens?

I am running tests using two Firefox Drivers to display the results. I am using two screens on my computer. Can I automatically open a driver on each screen via java code running in Eclipse?
Thanks.

I think you should run parallel test cases https://saucelabs.com/java/se2/8
#RunWith(Parallelized.class)
public class WebDriverParallelTest {
private String browser;
private String os;
private String version;
public WebDriverParallelTest(String os, String version, String browser) {
super();
this.os = os;
this.version = version;
this.browser = browser;
}
#Parameterized.Parameters
public static LinkedList browsersStrings() throws Exception {
LinkedList browsers = new LinkedList();
browsers.add(new String[]{Platform.XP.toString(), "17", "firefox"});
//add any additional browsers here
return browsers;
}
private WebDriver driver;
#Before
public void setUp() throws Exception {
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.BROWSER_NAME, browser);
capabilities.setCapability(CapabilityType.VERSION, version);
capabilities.setCapability(CapabilityType.PLATFORM, os);
this.driver = new RemoteWebDriver(
new URL("http://credential of sauce lab"), capabilities);
}
#Test
public void webDriver() throws Exception {
driver.get("http://www.amazon.com/");
assertEquals("Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more", driver.getTitle());
}
#After
public void tearDown() throws Exception {
driver.quit();
}
}