java.lang.NullPointerException is appearing

Question

I am new in automation. Here is my simple TestNG login code , when I ran the code as TestNG it appears java.lang.NullPointerException and by double clicking it highlights the place where I navigate to the URL. here is my code.

enter code here
package Day5pkg;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

public class Day5 {
    public WebDriver driver;
@BeforeTest
      public void beforeTest() {
          System.setProperty("webdriver.firefox.driver","C:\\Users\\Nabila\\Downloads\\geckodriver-v0.26.0-win64\\geckodriver.exe");

          FirefoxOptions options = new FirefoxOptions();
            driver.navigate().to("http://www.demo.guru99.com/V4/");
            driver.manage().timeouts().implicitlyWait(300, TimeUnit.SECONDS);
            options.addArguments("test-type");
            options.addArguments("start-maximized");
            options.addArguments("--js-flags=--expose-gc");  
            options.addArguments("--enable-precise-memory-info"); 
            options.addArguments("--disable-popup-blocking");
            options.addArguments("--disable-default-apps");
            options.addArguments("test-type=browser");
            options.addArguments("disable-infobars");

      }
  @Test  (priority = 0)
    public void login(){
      driver = new FirefoxDriver();

         driver.findElement(By.name("uid")).sendKeys("mngr231");
         driver.findElement(By.name("password")).click();
         driver.findElement(By.name("password")).sendKeys("ehyjusu");
         driver.findElement(By.name("btnLogin")).click();
            System.out.println("Manger Id : mngr230");
      }

driver is not initialized. you have to create the driver, like driver = new FirefoxDriver(); before navigating to the url — Sureshmani Kalirajan
– Sureshmani Kalirajan, Commented Nov 1, 2019 at 14:42

undetected Selenium · Accepted Answer · 2019-11-01 14:44:50Z

1

You have only declared the WebDriver instance as:

public WebDriver driver;

You need to initialize it too as follows:

driver = new FirefoxDriver();

Along with the instance of FirefoxOptions() your effective code block will be:

System.setProperty("webdriver.firefox.driver","C:\\Users\\Nabila\\Downloads\\geckodriver-v0.26.0-win64\\geckodriver.exe");
FirefoxOptions options = new FirefoxOptions();
options.addArguments("test-type");
options.addArguments("start-maximized");
options.addArguments("--js-flags=--expose-gc");  
options.addArguments("--enable-precise-memory-info"); 
options.addArguments("--disable-popup-blocking");
options.addArguments("--disable-default-apps");
options.addArguments("test-type=browser");
options.addArguments("disable-infobars");
driver = new FirefoxDriver(options);
driver.navigate().to("http://www.demo.guru99.com/V4/");
driver.manage().timeouts().implicitlyWait(300, TimeUnit.SECONDS);

answered Nov 1, 2019 at 14:44

undetected Selenium

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4 Comments

Nabila Shakeel Over a year ago

After did this found number of issues.

undetected Selenium Over a year ago

@NabilaShakeel Update the question with your current code block and the error trace logs please

Nabila Shakeel Over a year ago

Updated. Please review

undetected Selenium Over a year ago

@NabilaShakeel That is a different issue altogether and you have to raise a new qestion for your new requirement.

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