Getting Exception in thread "main" java.lang.NullPointerException in Selenium

Question

Getting "main" java.lang.NullPointerException in Selenium

I am new to Selenium and I have started POM structure by following Youtube/Udemy tutorials. Iam getting this error.

My POM class code :

package Pages;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class Guru99Homepage {
    WebDriver driver;

    public Guru99Homepage(WebDriver driver) {
        this.driver = driver;
    }

    public void browserlaunch() {
        System.setProperty("webdriver.chrome.driver", "/Users/saurabh.gupta/eclipse-workspace/Project/Driver/chromedriver");
        driver = new ChromeDriver();
    }

    public void openguruwebsite() {
        driver.get("http://demo.guru99.com/V4");
    }

}

2nd POM Class :

package Pages;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;

public class Guru99LoginPage {
    WebDriver driver;

    public Guru99LoginPage(WebDriver driver) {
        this.driver = driver;
    }

    public void username(String User_name) {
        driver.findElement(By.xpath("//input[@name='uid']")).sendKeys(User_name);
    }

    public void Password(String Pass) {
        driver.findElement(By.xpath("//input[@name='password']")).sendKeys(Pass);
    }

    public void clickat_loginbutton() {
        driver.findElement(By.xpath(" //input[@name='btnLogin']")).click();
    }
}

Test case :

package TestCases;
import org.openqa.selenium.WebDriver;
import Pages.Guru99Homepage;
import Pages.Guru99LoginPage;

public class Guru99Login{

    public static void main(String[] args) {
        WebDriver driver = null;
        Guru99Homepage homepage = new Guru99Homepage(driver);
        Guru99LoginPage lgnpage = new Guru99LoginPage(driver);

        //Browserlaunch
        homepage.browserlaunch();

        //WebsiteOpen
        homepage.openguruwebsite();
        //driver.manage().window().maximize();
        lgnpage.username("mngr47659");
        lgnpage.Password("123456@");
        lgnpage.clickat_loginbutton();
    }
}

"I am able to open browser but after that Iam getting the below error message"

INFO: Detected dialect: W3C
Exception in thread "main" java.lang.NullPointerException
    at TestCases.Guru99Login.main(Guru99Login.java:31)

Please help me ,so that I can start pom structure with your support.

Thanks

you are getting error because when you instantiate page object classes, driver is null. what you need to do is instantiate the driver in your Guru99Login class — Ayaz, Dec 10 '19 at 06:56

score 0 · Answer 1 · answered Dec 10 '19 at 07:05

0

In main function you have initialized WebDriver driver=null;.Instead make it as WebDriver driver;

answered Dec 10 '19 at 07:05

APV

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Getting Exception in thread "main" java.lang.NullPointerException in Selenium

1 Answers1