selenium-webdriver - 別のクラスから ItestResult メソッドを呼び出す方法は?

Question

クラスが 2 つあるのですが、クラス "A" の public void getResult(ITestResult result) メソッドをクラス "B" で呼び出したいのですが、どのように呼び出すのですか? NullPointerException を取得しています

ファーストクラス

public class loginPage{

public WebDriver driver;
Utility ut= new Utility();
ExtentHtmlReporter htmlReporter;
 ExtentReports extent;
 ExtentTest logger;
By EmailId= By.xpath("//*[@name='Email']");
By password = By.xpath("//*[@name='Password']");
By LoginBtn= By.xpath("//*[@id='frmLogIn']/div[4]/button");


public loginPage(WebDriver driver) {
    this.driver=driver;

}


 @BeforeTest
    public void startReport(){

        htmlReporter = new ExtentHtmlReporter(System.getProperty("user.dir") +"/test-output/ExtentReport.html");
        extent = new ExtentReports ();
        extent.attachReporter(htmlReporter);
        extent.setSystemInfo("Host Name", "SoftwareTestingMaterial");
        extent.setSystemInfo("Environment", "Automation Testing");
        extent.setSystemInfo("User Name", "Rajkumar SM");

        htmlReporter.config().setDocumentTitle("Title of the Report Comes here");
        htmlReporter.config().setReportName("Name of the Report Comes here");
        htmlReporter.config().setTestViewChartLocation(ChartLocation.TOP);
        htmlReporter.config().setTheme(Theme.STANDARD);
    }
 @Test
public void setusername(WebDriver driver)
{
    try
    {
        driver.findElement(EmailId).sendKeys("nilima@mailinator.com");
        logger = extent.createTest("setusername");
        Assert.assertTrue(true);
        logger.log(Status.PASS, MarkupHelper.createLabel("Test Case Passed is setusername", ExtentColor.GREEN));
    }
    catch (TimeoutException e) 
    {
        System.out.println("Time out exception " + e);
        ut.capturescreenshot(driver, "setusername");
    } 
    catch (ElementNotSelectableException e) {
        System.out.println("Element not selectable exception " + e);
        ut.capturescreenshot(driver, "setusername");
    } catch (NoSuchElementException e) {
        System.out.println("No such element found " + e);
        ut.capturescreenshot(driver, "setusername");
    } catch (ElementNotVisibleException e) {
        e.printStackTrace();
        ut.capturescreenshot(driver, "setusername");
    } catch (Exception e) {
        System.out.println("Something Wrong" + e);
        ut.capturescreenshot(driver, "setusername");

    }

}
@Test
public void setpassword(WebDriver driver)
{
    try
    {
        driver.findElement(password).sendKeys("123123");
        logger = extent.createTest("setpassword");
        Assert.assertTrue(true);
        logger.log(Status.PASS, MarkupHelper.createLabel("Test Case Passed is setpassword", ExtentColor.GREEN));
    }
    catch (TimeoutException e) 
    {
        System.out.println("Time out exception " + e);
        ut.capturescreenshot(driver, "setpassword");
    } 
    catch (ElementNotSelectableException e) {
        System.out.println("Element not selectable exception " + e);
        ut.capturescreenshot(driver, "setpassword");
    } catch (NoSuchElementException e) {
        System.out.println("No such element found " + e);
        ut.capturescreenshot(driver, "setpassword");
    } catch (ElementNotVisibleException e) {
        e.printStackTrace();
        ut.capturescreenshot(driver, "setpassword");
    } catch (Exception e) {
        System.out.println("Something Wrong" + e);
        ut.capturescreenshot(driver, "setpassword");
    }

}

@Test
public void Login()
{
    try
    {
        driver.findElement(LoginBtn).click();
        String Title="Login | ORGCAP";
        String GetTitle = driver.getTitle();
        logger = extent.createTest("Login");
        Assert.assertEquals(Title, GetTitle);
        logger.log(Status.PASS, MarkupHelper.createLabel("Test Case Passed is Login", ExtentColor.GREEN));

    }
    catch (TimeoutException e) 
    {
        System.out.println("Time out exception " + e);
        ut.capturescreenshot(driver, "Login");
    } 
    catch (ElementNotSelectableException e) {
        System.out.println("Element not selectable exception " + e);
        ut.capturescreenshot(driver, "Login");
    } catch (NoSuchElementException e) {
        System.out.println("No such element found " + e);
        ut.capturescreenshot(driver, "Login");
    } catch (ElementNotVisibleException e) {
        e.printStackTrace();
        ut.capturescreenshot(driver, "Login");
    } catch (Exception e) {
        System.out.println("Something Wrong" + e);
        ut.capturescreenshot(driver, "Login");
    }
}


    @AfterMethod
    public void getResult(ITestResult result){
        if(result.getStatus() == ITestResult.FAILURE){
            logger.log(Status.FAIL, MarkupHelper.createLabel(result.getName() + " - Test Case Failed", ExtentColor.RED));
            logger.log(Status.FAIL, MarkupHelper.createLabel(result.getThrowable() + " - Test Case Failed", ExtentColor.RED));
        }else if(result.getStatus() == ITestResult.SKIP){
            logger.log(Status.SKIP, MarkupHelper.createLabel(result.getName() + " - Test Case Skipped", ExtentColor.ORANGE));   
        }
    }
    @AfterTest
    public void endReport(){
        extent.flush();
    }

}

私のセカンドクラスは

 public class login extends TestBuild{
 ITestResult result;

@Test()
public void Loginadmin() throws IOException{

    TestBuild BrowserSetUp= new TestBuild();
    BrowserSetUp.setup();
    loginPage lp= new loginPage(driver);
    lp.startReport();
    lp.setusername(driver);
    lp.setpassword(driver);
    lp.Login();
    lp.getResult(result);
    lp.endReport();
}
}   

次の場所で NullPointerException を取得しています。

if(result.getStatus() == ITestResult.FAILURE) 行。

これをどのように処理しますか？