java.lang.NullPointerException error displays upon execution of test

Question

I am a beginner in automation, and I am writing a class to initialize and teardown the driver after execution, but I keep getting nullpointerexception. I added some breakpoints in teardown method to debug, it prints 1 and 2 and then throws

java.lang.NullPointerException
    at AppiumConfiguration.tearDown(AppiumConfiguration.java:43)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:458)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:142)
    at org.testng.internal.TestMethodWorker.invokeAfterClassMethods(TestMethodWorker.java:214)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
    at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:105)

This is my code.

import io.appium.java_client.ios.IOSDriver;
import io.appium.java_client.ios.options.XCUITestOptions;
import io.appium.java_client.service.local.AppiumDriverLocalService;
import io.appium.java_client.service.local.AppiumServiceBuilder;
import org.openqa.selenium.remote.http.HttpClient;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.time.Duration;

public class AppiumConfiguration {
    public IOSDriver driver;
    public AppiumDriverLocalService builder;


    @BeforeClass
    public void initializeAppium() throws MalformedURLException {
        AppiumDriverLocalService builder = new AppiumServiceBuilder()
                .withAppiumJS(new File("//usr//local//lib//node_modules//appium//build//lib//main.js"))
                .usingDriverExecutable(new File("/usr/local/bin/node"))
                .withIPAddress("127.0.0.1").usingPort(4723).build();

        builder.start();

        XCUITestOptions options = new XCUITestOptions();
        options.setDeviceName("iPhone 14 Pro");
        options.setApp("/Users/aj/Documents/AutomationPortfolio/resources/UIKitCatalog.app");
        options.setPlatformVersion("16.4");
        options.setWdaLaunchTimeout(Duration.ofSeconds(20));

        driver = new IOSDriver(new URL("http://127.0.0.1:4723"),options);
        driver.manage().timeouts().implicitlyWait(Duration.ofSeconds(10));

    }

    @AfterClass
    public void tearDown(){
        System.out.println(1);
        driver.quit();
        System.out.println(2);
        builder.stop();
        System.out.println(3);
    }


}

Any help Is appreciated

I expect the project to. not throw exception.

java.lang.NullPointerException error displays upon execution of test

0 Answers0