Page Factory is throwing null pointer exception

[Madhurya A N]

I have initialized the page factory elements, but it is throwing null pointer error
Login page code:
public class LoginPage extends BaseClass
{
public WebDriver driver;
@FindBy(id="inputusername|input")
public WebElement username;

@FindBy(id="inputppassword|input")
WebElement password;

@FindBy(id="loginbtn")
WebElement loginbutton;

public LoginPage(WebDriver driver)
{
	this.driver = driver;
	PageFactory.initElements(driver, this);

}
public void Login()
{
	System.out.println(username);

[Joe Ward]

What is the "it" that is throwing NullPointerException?

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[Madhurya A N]

The Page Factory elements are not getting stored, when i run the script null pointer error is thrown

Below is my code for LoginPage 

package com.PageFactory;

import org.openqa.selenium.By;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.WebElement;

import org.openqa.selenium.support.FindBy;

import org.openqa.selenium.support.PageFactory;

import org.testng.annotations.Test;

import com.TestBase.BaseClass;

@Test

public class LoginPage extends BaseClass

{

public WebDriver driver;

@FindBy(id="inputusername|input")

WebElement username;

@FindBy(id="inputppassword|input")

WebElement password;

@FindBy(id="loginbtn")

WebElement loginbutton;

//LoginPage page = PageFactory.initElements(driver, LoginPage.class);

//BaseClass page = PageFactory.initElements(driver, BaseClass.class);

public LoginPage(WebDriver driver)

{

this.driver = driver;

//PageFactory.initElements(driver, this);

PageFactory.initElements(driver, this);

}

public void Login()

{

System.out.println(username);

username.sendKeys("admin");

}

}

Base Class

package com.TestBase;

import java.io.FileInputStream;

import java.util.Properties;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.chrome.ChromeDriver;

import org.openqa.selenium.chrome.ChromeOptions;

import org.openqa.selenium.firefox.FirefoxDriver;

import org.openqa.selenium.firefox.FirefoxOptions;

import org.testng.annotations.Test;

public class BaseClass 

{

public FileInputStream fip;

public Properties prop;

public WebDriver driver;

@Test

    public void LaunchBrowser() throws Throwable

    {

    fip = new FileInputStream(".//src//com//Config//config.properties");

    prop = new Properties();

    prop.load(fip);

    String browserType = prop.getProperty("browser");

    /******** For Chrome Browser ********/

    if(browserType.equalsIgnoreCase("Chrome"))

    {

    System.setProperty(prop.getProperty("chromedriverkey"), prop.getProperty("chromedriver"));

    ChromeOptions options = new ChromeOptions();

options.setBinary(prop.getProperty("chromebrowserpath"));

    driver = new ChromeDriver(options);

    System.out.println("Chrome Browser Launched Successfully!!");

   

    }

    /******** For Firefox Browser ********/

    else if(browserType.equalsIgnoreCase("Firefox"))

    {

    System.setProperty(prop.getProperty("geckodriverkey"), prop.getProperty("geckodriver"));

    FirefoxOptions options= new FirefoxOptions();

options.setBinary(prop.getProperty("firefoxbrowserpath"));

driver = new FirefoxDriver(options);

System.out.println("Firefox Browser Launched Successfully!!");

    }

    /******** Default Chrome Browser ********/

    else

    {

    System.setProperty(prop.getProperty("chromedriverkey"), prop.getProperty("chromedriver"));

    ChromeOptions options = new ChromeOptions();

options.setBinary(prop.getProperty("chromebrowserpath"));

    driver = new ChromeDriver(options);

    System.out.println("Chrome Browser Launched Successfully!!");

    }

    driver.get(prop.getProperty("applicationAccessUrl"));

driver.manage().window().maximize();

driver.manage().deleteAllCookies();

driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

    }

}

On Friday, February 14, 2020 at 8:23:01 PM UTC+5:30, That Guy wrote:

What is the "it" that is throwing NullPointerException?

On Fri, 14 Feb 2020 at 14:08, Madhurya A N <anmadh...@gmail.com> wrote:

I have initialized the page factory elements, but it is throwing null pointer error
Login page code:
public class LoginPage extends BaseClass
{
public WebDriver driver;
@FindBy(id="inputusername|input")
public WebElement username;

@FindBy(id="inputppassword|input")
WebElement password;

@FindBy(id="loginbtn")
WebElement loginbutton;

public LoginPage(WebDriver driver)
{
	this.driver = driver;
	PageFactory.initElements(driver, this);

}
public void Login()
{
	System.out.println(username);

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[Mike Hetzer]

You still haven't really clarified what is null. 
However I think you have some other fundamental framework issues.

It looks like your "Page Object" is derived from a Base Class that is meant for Tests and is even annotated as a @Test.
Your page objects should derive from a base class intended for page objects.
Frankly, I'm not sure how this code even runs just by looking at it . . .

I think you should check out this guide as a good jumping off point:
https://www.guru99.com/page-object-model-pom-page-factory-in-selenium-ultimate-guide.html

However, PageFactory is getting deprecated, so you probably should not implement it as a design pattern in the long term.
It's still easy to implement the Page Object design pattern without the use of PageFactory too.

I've made a previous post with examples about POM, albeit it is in C# not Java - but the concepts are easily translatable.
https://groups.google.com/d/msg/selenium-users/105ch-hdtLw/vrxB6v4DBQAJ

[rarunp04 .]

Please remove be the webdriver declaration from Login page class

You need to create separate class and define the test annotations not in page objects class

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