INFO: Detected dialect: W3C [Utils] [ERROR] [Error] java.lang.NullPointerException

Question

I have tried to run this code but it won't run... It just shows an error INFO: Detected dialect: W3C [Utils] [ERROR] [Error] java.lang.NullPointerException Please help me with your valid suggestions I have posted my Runner class file as well as console Error code for your clarification

Runner class:

 package tR;
    import java.io.IOException;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.chrome.ChromeDriver;
    import org.testng.annotations.AfterClass;
    import org.testng.annotations.BeforeClass;
    import org.testng.annotations.DataProvider;
    import org.testng.annotations.Test;
    import cucumber.api.testng.CucumberFeatureWrapper;
    import cucumber.api.testng.TestNGCucumberRunner;
    import io.cucumber.testng.CucumberOptions;
    @CucumberOptions(
    features = "Feature/result.feature",
    glue={"sD"})
    public class Tr {
        private TestNGCucumberRunner testNGCucumberRunner;
        public static WebDriver driver;
        public static void openBrowser() throws Exception {
            System.setProperty("webdriver.chrome.driver","E:\\xxxxxx\\xx\\chromedriver.exe");
            driver = new ChromeDriver();}
        @BeforeClass(alwaysRun = true)
        public void setUpClass() throws Exception {
           openBrowser();
           testNGCucumberRunner = new TestNGCucumberRunner(this.getClass());}
        @Test(groups = "cucumber", description = "Runs Cucumber Feature", dataProvider = "features")
        public void feature(CucumberFeatureWrapper cucumberFeature) throws IOException{
        testNGCucumberRunner.runCucumber(cucumberFeature.getCucumberFeature());}
        @DataProvider
        public Object[][] features() {
        return testNGCucumberRunner.provideFeatures();}
        @AfterClass(alwaysRun=true)
        public void tearDownClass() throws Exception {
        testNGCucumberRunner.finish();
        }}

Console

org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
[Utils] [ERROR] [Error] java.lang.NullPointerException
    at tR.Tr.features(Tr.java:45)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:77)
    at org.testng.internal.MethodInvocationHelper.invokeMethodNoCheckedException(MethodInvocationHelper.java:46)
    at org.testng.internal.MethodInvocationHelper.invokeDataProvider(MethodInvocationHelper.java:146)
    at org.testng.internal.Parameters.handleParameters(Parameters.java:820)
    at org.testng.internal.Parameters.handleParameters(Parameters.java:762)
    at org.testng.internal.ParameterHandler.handleParameters(ParameterHandler.java:60)
    at org.testng.internal.ParameterHandler.createParameters(ParameterHandler.java:39)
    at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:771)
    at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:145)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
    at java.util.ArrayList.forEach(Unknown Source)
    at org.testng.TestRunner.privateRun(TestRunner.java:770)
    at org.testng.TestRunner.run(TestRunner.java:591)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:402)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:396)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:355)
    at org.testng.SuiteRunner.run(SuiteRunner.java:304)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1180)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1102)
    at org.testng.TestNG.runSuites(TestNG.java:1032)
    at org.testng.TestNG.run(TestNG.java:1000)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

FAILED CONFIGURATION: @BeforeClass setUpClass
java.lang.NoClassDefFoundError: io/cucumber/stepexpression/TypeRegistry
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
    at java.lang.Class.getConstructor0(Unknown Source)
    at java.lang.Class.getConstructor(Unknown Source)
    at cucumber.runtime.Reflections.hasConstructor(Reflections.java:53)
    at cucumber.runtime.Reflections.instantiateSubclasses(Reflections.java:29)
    at cucumber.runtime.Runtime.loadBackends(Runtime.java:99)
    at cucumber.runtime.Runtime.<init>(Runtime.java:66)
    at cucumber.api.testng.TestNGCucumberRunner.<init>(TestNGCucumberRunner.java:42)
    at tR.Tr.setUpClass(Tr.java:35)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:62)
    at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:340)
    at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:294)
    at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:176)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:122)
    at java.util.ArrayList.forEach(Unknown Source)
    at org.testng.TestRunner.privateRun(TestRunner.java:770)
    at org.testng.TestRunner.run(TestRunner.java:591)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:402)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:396)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:355)
    at org.testng.SuiteRunner.run(SuiteRunner.java:304)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1180)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1102)
    at org.testng.TestNG.runSuites(TestNG.java:1032)
    at org.testng.TestNG.run(TestNG.java:1000)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: java.lang.ClassNotFoundException: io.cucumber.stepexpression.TypeRegistry
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 36 more

FAILED CONFIGURATION: @AfterClass tearDownClass
java.lang.NullPointerException
    at tR.Tr.tearDownClass(Tr.java:51)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:62)
    at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:340)
    at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:294)
    at org.testng.internal.TestMethodWorker.invokeAfterClassMethods(TestMethodWorker.java:217)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:130)
    at java.util.ArrayList.forEach(Unknown Source)
    at org.testng.TestRunner.privateRun(TestRunner.java:770)
    at org.testng.TestRunner.run(TestRunner.java:591)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:402)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:396)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:355)
    at org.testng.SuiteRunner.run(SuiteRunner.java:304)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1180)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1102)
    at org.testng.TestNG.runSuites(TestNG.java:1032)
    at org.testng.TestNG.run(TestNG.java:1000)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

SKIPPED: feature
         Runs Cucumber Feature
java.lang.RuntimeException: java.lang.NullPointerException
    at org.testng.internal.MethodInvocationHelper.invokeMethodNoCheckedException(MethodInvocationHelper.java:50)
    at org.testng.internal.MethodInvocationHelper.invokeDataProvider(MethodInvocationHelper.java:146)
    at org.testng.internal.Parameters.handleParameters(Parameters.java:820)
    at org.testng.internal.Parameters.handleParameters(Parameters.java:762)
    at org.testng.internal.ParameterHandler.handleParameters(ParameterHandler.java:60)
    at org.testng.internal.ParameterHandler.createParameters(ParameterHandler.java:39)
    at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:771)
    at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:145)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
    at java.util.ArrayList.forEach(Unknown Source)
    at org.testng.TestRunner.privateRun(TestRunner.java:770)
    at org.testng.TestRunner.run(TestRunner.java:591)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:402)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:396)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:355)
    at org.testng.SuiteRunner.run(SuiteRunner.java:304)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1180)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1102)
    at org.testng.TestNG.runSuites(TestNG.java:1032)
    at org.testng.TestNG.run(TestNG.java:1000)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: java.lang.NullPointerException
    at tR.Tr.features(Tr.java:45)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:77)
    at org.testng.internal.MethodInvocationHelper.invokeMethodNoCheckedException(MethodInvocationHelper.java:46)
    ... 25 more

Remove the Selenium related code and cross check if your TestNG set up works or not. — DebanjanB, Jan 24 '20 at 07:25
The exception stacktrace clearly mentions that you have a messed up classpath `Caused by: java.lang.ClassNotFoundException: io.cucumber.stepexpression.TypeRegistry`. Please fix your dependencies and try again. — Krishnan Mahadevan, Jan 25 '20 at 03:40

score 0 · Answer 1 · answered Oct 11 '20 at 11:29

first INFO: Detected dialect: W3C is just information about the Dialect that chrome is using (w3c or OSS). try using the updated selenium and testNG dependencies.

java.lang.NullPointerException is usually caused when you try to use a reference that points to no location in memory (null) as though it were referencing an object. Calling a method on a null reference or trying to access a field of a null reference will trigger a NullPointerException.(https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it)

INFO: Detected dialect: W3C [Utils] [ERROR] [Error] java.lang.NullPointerException

1 Answers1