Null pointer exception in Java while calling the library

Question

Now i modified the code but still i am getting Null Pointer Exception

Below is my modified code enter code here

package lib;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.annotations.BeforeMethod;
//@SuppressWarnings("unused")
public class Login {
WebDriver driver;
@BeforeMethod
void Initalisation()
{
System.setProperty("webdriver.ie.driver", "C:\\Eclipse\\IEDriverServer.exe");
    DesiredCapabilities capability=new DesiredCapabilities();
    capability.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS, true);
    InternetExplorerDriver driver=new InternetExplorerDriver(capability);
    driver.get("http://segotn11540.rds.volvo.com/vss_connect_testr1/Login/Login.aspx");

}

public Login(String UserName,String BrandName)
{

    driver.findElement(By.xpath("//input[@name='UserNameInputText']")).sendKeys(UserName);
    driver.findElement(By.xpath("//input[@name='Brand']")).sendKeys(BrandName);
    driver.findElement(By.xpath("//input[@name='CmdLogin']")).click();
    String Title=driver.getTitle();

    if(!Title.contains("VSS 4.0"))
            {
        System.out.println(UserName+""+"does not exists");
        driver.quit();
            }
    CheckForCancel();
}
private void CheckForCancel() {
    if(!driver.findElements(By.id("Cancel")).isEmpty())
    {
    driver.findElement(By.id("Cancel")).click();
    }

}

}

Now I will create the main Java file

Blockquote This will initalise the login with the parameters supplied

Import Login library
public class MessageBoard {
public static void main(String[] args)
{
    Login login=new Login("TYP40FI","Volvo");

}


}

What is wrong in above code

Initialize `driver` variable . [And check](http://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — Madhan, Jul 14 '16 at 09:27

Jai Shah · Answer 1 · 2016-07-14T11:37:30.157

0

Try to initialize the driver variable as WebDriver driver = new WebDriver();

edited Jul 14 '16 at 11:37

answered Jul 14 '16 at 09:11

Jai Shah

56
1
8

Do i need to do in Main Program – Manish B Jul 14 '16 at 09:20
do it in the Login and Initialisation classes. – Jai Shah Jul 14 '16 at 09:56

score 0 · Answer 2 · answered Jul 14 '16 at 13:52

public Login(String UserName,String BrandName)

{

//Add this line in your code as you are trying in IE
driver = new InternetExplorerDriver();


driver.findElement(By.xpath("//input[@name='UserNameInputText']")).sendKeys(UserName);
driver.findElement(By.xpath("//input[@name='Brand']")).sendKeys(BrandName);
driver.findElement(By.xpath("//input[@name='CmdLogin']")).click();
String Title=driver.getTitle();

if(!Title.contains("VSS 4.0"))
        {
    System.out.println(UserName+""+"does not exists");
    driver.quit();
        }
CheckForCancel();

}

score 0 · Answer 3 · answered Jul 25 '16 at 01:24

Debug and check: Is Initalisation() being called in the beginning?
Usually @BeforeMethod is called before test starts, so where is your @Test function. (syntax could be wrong)
If you don't really care about @Test property, that means your Main function needs to call Initalisation() before calling Login(...), otherwise the driver is not set yet (aka Null)

Null pointer exception in Java while calling the library

3 Answers3