Not able to creates secreenshots

[NAGARJUNA_MALLEMKOND]

HI Everyone,
I am getting an issue with creating a screenshots.
Code everthing is correct executing successfull i don’t know why i am unable to genrate screensshots for failed testcases.
pls get me out of this
BasePage:-

package YahaalPkg.Base;

import YahaalPkg.utils.TestUtils;
import com.aventstack.extentreports.testng.listener.ExtentITestListenerAdapter;
import io.appium.java_client.AppiumBy;
import io.appium.java_client.AppiumDriver;
import io.appium.java_client.PerformsTouchActions;
import io.appium.java_client.TouchAction;
import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.android.AndroidTouchAction;
import io.appium.java_client.android.StartsActivity;
import io.appium.java_client.pagefactory.AppiumFieldDecorator;
import io.appium.java_client.touch.LongPressOptions;
import io.appium.java_client.touch.WaitOptions;
import io.appium.java_client.touch.offset.PointOption;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.openqa.selenium.Dimension;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.PageFactory;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.annotations.*;

import java.io.File;
import java.io.InputStream;
import java.net.URL;
import java.time.Duration;
import java.util.HashMap;
import java.util.Properties;

@Listeners(ExtentITestListenerAdapter.class)
public class BasePage {
   protected static  AppiumDriver driver;
   protected static Properties props;
   protected static String dateTime;
    protected static  HashMap<String, String> strings = new HashMap<String, String>();
   InputStream inputStream;
   InputStream stringsis;
   TestUtils utils;
   static Logger log = LogManager.getLogger(BasePage.class.getName());

   public BasePage() {
       PageFactory.initElements(new AppiumFieldDecorator(BasePage.driver),this);
   }

    @Parameters({"platformName","platformVersion","deviceName"})
    @BeforeTest
    public void BeforeTest(String platformName, String platformVersion, String deviceName)  throws Exception {
       utils = new TestUtils();
       dateTime = utils.dateTime();
       log.info("This is a info message");
       log.error("This is a error message");
       log.debug("This is a debug message");
       log.warn("This is a warn message");

       try {
            props = new Properties();
            String propFileName = "config.properties";
            String xmlFileName = "strings/strings.xml";
            inputStream = getClass().getClassLoader().getResourceAsStream(propFileName);
            props.load(inputStream);

            stringsis = getClass().getClassLoader().getResourceAsStream(xmlFileName);
            strings = (HashMap<String, String>) utils.parseStringXML(stringsis);

            DesiredCapabilities desiredCapabilities = new DesiredCapabilities();
            desiredCapabilities.setCapability("platformName", platformName);
            desiredCapabilities.setCapability("appium:platformVersion", platformVersion);
            desiredCapabilities.setCapability("appium:deviceName", deviceName);
            desiredCapabilities.setCapability("appium:automationName", props.getProperty("androidAutomationName"));
            desiredCapabilities.setCapability("appium:appPackage", props.getProperty("androidAppPackage"));
            desiredCapabilities.setCapability("appium:appActivity", props.getProperty("androidAppActivity"));
//            desiredCapabilities.setCapability("appium:udid","8f8dd32a");
//            desiredCapabilities.setCapability("appium:ignoreHiddenApiPolicyError","true");
            URL appUrl = getClass().getClassLoader().getResource(props.getProperty("androidAppLocation"));
            String appUrls = System.getProperty("user.dir")+ File.separator+"src"+File.separator+"test"+File.separator+"resources"+File.separator+"app"+File.separator+"YahaalNewDev.apk";
            desiredCapabilities.setCapability("appium:app", appUrls);
            URL url = new URL(props.getProperty("appiumURL"));
            driver = new AndroidDriver(url, desiredCapabilities);
            String sessionID = driver.getSessionId().toString();
            System.out.println(sessionID);
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
       finally {
           if (inputStream !=null) {
               inputStream.close();
           }
           if (stringsis !=null) {
               stringsis.close();
           }
       }
    }
    public AppiumDriver getDriver() {
       return driver;
    }
    public String getDateTime() {
       return dateTime;
    }
     public void waitForVisibility(WebElement element) {
            WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(TestUtils.WAIT));
            wait.until(ExpectedConditions.visibilityOf(element));
            wait.until(ExpectedConditions.elementToBeClickable(element));
    }
    public void click(WebElement element) {
        waitForVisibility(element);
        element.click();
    }
    public void sendKeys(WebElement element, String txt) {
        waitForVisibility(element);
        element.sendKeys(txt);
    }
    public void getAttribute(WebElement element, String attribute) {
        waitForVisibility(element);
        element.getAttribute(attribute);
    }
    public void clear(WebElement element) {
       waitForVisibility(element);
       element.clear();
    }
    @Deprecated
    public void performSwipeUp()  {
        Dimension size = driver.manage().window().getSize();

        int starty = (int) (size.height * 0.80);
        int endy = (int) (size.height * 0.20);
        int startx = size.width / 2;

        TouchAction touchAction = new TouchAction((PerformsTouchActions) driver);
        touchAction.longPress(LongPressOptions.longPressOptions().withPosition(PointOption.point(startx, starty)))
                .moveTo(PointOption.point(startx, endy)).release().perform();

    }
    @Deprecated
    public void performSwipeDown() {
        Dimension size = driver.manage().window().getSize();

        int starty = (int) (size.height * 0.80);
        int endy = (int) (size.height * 0.20);
        int startx = size.width / 2;

        TouchAction touchAction = new TouchAction((PerformsTouchActions) driver);
        touchAction.longPress(LongPressOptions.longPressOptions().withPosition(PointOption.point(startx, starty)))
                .moveTo(PointOption.point(startx, endy)).release().perform();
    }

    @AfterTest
    public void afterTest() {
//     driver.quit();
    }
}

TestListenerclass:-

package YahaalPkg.listeners;

import YahaalPkg.Base.BasePage;
import YahaalPkg.utils.TestUtils;
import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.testng.ITestListener;
import org.testng.ITestResult;
import org.testng.Reporter;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;


public class TestListener implements ITestListener {

    public void onTestFailure(ITestResult result) {
        if (result.getThrowable() !=null) {
       StringWriter sw = new StringWriter();
       PrintWriter pw = new PrintWriter(sw);
       result.getThrowable().printStackTrace(pw);
       System.out.println(sw.toString());
        }

        BasePage basepage = new BasePage();
        File file = basepage.getDriver().getScreenshotAs(OutputType.FILE);
        Map <String, String> params = new HashMap<String, String>();
        params = result.getTestContext().getCurrentXmlTest().getAllParameters();
        String imagePath = "Screenshots" + File.separator + params.get("platformName")
                + "_" + params.get("deviceName") + File.separator + basepage.getDateTime() + File.separator
                + result.getTestClass().getRealClass().getSimpleName() + File.separator + result.getName() + ".png";

        String completeImagePath = System.getProperty("user.dir") + File.separator + imagePath;
               try {
            FileUtils.copyFile(file, new File(imagePath));
            Reporter.log("This is the sample screenshot");
            Reporter.log("<a href='"+ completeImagePath + "'> <img src='"+ completeImagePath + "' height='400' width='400'/> </a>");
        } catch (IOException e) {
            e.printStackTrace();
        }


    }

}

pom.xml:-

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>YahaalMobileAppAuto</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
<!--    </properties>-->
<!--    <properties>-->
        <jvm.options>--add-opens java.base/java.lang=ALL-UNNAMED</jvm.options>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>3.0.0-M5</version>
                <configuration>
                    <argLine>${jvm.options}</argLine>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>

        <!-- https://mvnrepository.com/artifact/io.appium/java-client -->
        <dependency>
            <groupId>io.appium</groupId>
            <artifactId>java-client</artifactId>
            <version>8.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.testng/testng -->
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>7.7.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.webjars.npm</groupId>
            <artifactId>swipebox-10quality</artifactId>
            <version>2.0.0</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.20.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.20.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.aventstack/extentreports-testng-adapter -->
        <dependency>
            <groupId>com.aventstack</groupId>
            <artifactId>extentreports-testng-adapter</artifactId>
            <version>1.0.7</version>
        </dependency>

        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20230227</version>
        </dependency>
    </dependencies>

</project>

[wreed]

@NAGARJUNA_MALLEMKOND

public void onTestFailure(ITestResult result) {

With ITestListener implementation, don’t you have to @override methods like ‘onTestFailure’? Example:

TestNG Listeners in Selenium: ITestListener & ITestResult Example