CODEWITHSUNDEEP
javaeclipseseleniumtestng
Pranjal Saxena
Pranjal Saxena

Reputation: 3

org.testng.TestNGException : Cannot instantiate class

I am facing this 'Cannot insantiate class' error on running one of my test cases in selenium webdriver using java(Using Maven project).

Below is the parent class where I defined driver and properties

package com.pvi.qa.base;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class TestBase {

    public static WebDriver driver;
    public static Properties prop ;

    public TestBase() {
        try {
            prop = new Properties();
            FileInputStream ip = new FileInputStream(System.getProperty("C:\\Users\\RxLogix\\eclipse-workspace\\PviIntake\\src\\main\\java\\com\\pvi\\qa\\config\\config.properties"));
        prop.load(ip);

        }
        catch(FileNotFoundException e) {
            e.printStackTrace();
        }
        catch(IOException e) {
            e.printStackTrace();
        }
    }

public static void initialization () {
String BrowserName = prop.getProperty("browser");   
if(BrowserName.equals("chrome")) {
    System.setProperty("webdriver.chrome.driver", "D:\\Softwares\\chromedriver_win32 (1)\\chromedriver.exe");
    driver = new ChromeDriver();}
driver.manage().window().maximize();
driver.manage().deleteAllCookies();
driver.manage().timeouts().pageLoadTimeout(20, TimeUnit.SECONDS);
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.get(prop.getProperty("url"));
}
}

Below is the test cases class which I am running through TestNG

package com.pvi.qa.testcases;

import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import com.pvi.qa.base.TestBase;
import com.pvi.qa.pages.HomePage;
import com.pvi.qa.pages.LoginPage;

public class LoginPageTest extends TestBase{
    LoginPage loginPage;
    HomePage homePage;


    public LoginPageTest() {
        super();
        }

    @BeforeMethod
    public void setUp() {
        initialization();
        loginPage = new LoginPage();
    }


    @Test
    public void logintest() {
        homePage = loginPage.login(prop.getProperty("username"), prop.getProperty("password"));
    }

    @AfterMethod
    public void tearDown() {
        driver.quit();
    }

}

And below is the error I am getting - 

[RemoteTestNG] detected TestNG version 6.14.3
org.testng.TestNGException: 
Cannot instantiate class com.pvi.qa.testcases.LoginPageTest
    at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:30)
    at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:423)
    at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:336)
    at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:125)
    at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:190)
    at org.testng.TestClass.getInstances(TestClass.java:95)
    at org.testng.TestClass.initTestClassesAndInstances(TestClass.java:81)
    at org.testng.TestClass.init(TestClass.java:73)
    at org.testng.TestClass.<init>(TestClass.java:38)
    at org.testng.TestRunner.initMethods(TestRunner.java:389)
    at org.testng.TestRunner.init(TestRunner.java:271)
    at org.testng.TestRunner.init(TestRunner.java:241)
    at org.testng.TestRunner.<init>(TestRunner.java:192)
    at org.testng.remote.support.RemoteTestNG6_12$1.newTestRunner(RemoteTestNG6_12.java:33)
    at org.testng.remote.support.RemoteTestNG6_12$DelegatingTestRunnerFactory.newTestRunner(RemoteTestNG6_12.java:66)
    at org.testng.SuiteRunner$ProxyTestRunnerFactory.newTestRunner(SuiteRunner.java:713)
    at org.testng.SuiteRunner.init(SuiteRunner.java:260)
    at org.testng.SuiteRunner.<init>(SuiteRunner.java:198)
    at org.testng.TestNG.createSuiteRunner(TestNG.java:1295)
    at org.testng.TestNG.createSuiteRunners(TestNG.java:1273)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1128)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:24)
    ... 25 more
Caused by: java.lang.NullPointerException
    at java.base/java.io.FileInputStream.<init>(Unknown Source)
    at java.base/java.io.FileInputStream.<init>(Unknown Source)
    at com.pvi.qa.base.TestBase.<init>(TestBase.java:20)
    at com.pvi.qa.testcases.LoginPageTest.<init>(LoginPageTest.java:17)
    ... 30 more

I have tried everything but not worked for me, Please let me know why I am getting this error. Thanks

Upvotes: 0

Views: 51104

Answers (5)

Jaibir singh
Jaibir singh

Reputation: 1

i think you dont want to write the whole system path so thats why u are using system.get but with system.get you are also giving whole path instead of that use system.get("user.dir")+"\src\main\java\com\pvi\qa\config\config.properties" the user.dir will return the system path where your file is stored this will help us and we dont have to write the long path of file.

Upvotes: 0

Chandan Dash
Chandan Dash

Reputation: 3

If you use Jdk_1.8 for your automation suite, It might be one of the following two errors :-

 1. java.lang.AbstractMethodError: org.openqa.selenium.remote.service.DriverService$Builder.loadSystemProperties()V

 2. org.testng.TestNGException: 
Cannot instantiate class tests.mobiquityPayX.payXUAT.channelApp.BillPayChannelTest

Solution: Try to upgrade your the latest java-client dependencies. It may be resolve your issues..

Upvotes: 0

Rajeev Ranjan
Rajeev Ranjan

Reputation: 1

Just Remove System.getproperty from your base class. Use this lines of code 

 prop = new Properties();

FileInputStream ip = new FileInputStream(("C:\\Users\\RxLogix\\eclipse-workspace\\PviIntake\\src\\main\\java\\com\\pvi\\qa\\config\\config.properties"));

prop.load(ip);

Upvotes: 0

sette
sette

Reputation: 67

Looking at the code, I understand the issue is in the constructor of the base class. LoginPageTest calls super() which invokes TestBase.

FileInputStream needs a file path. I suspect FileInputSteam object created is coming as null.

Why are you calling System.getProperty? Is the config.properties file available?

Upvotes: 1

OhleC
OhleC

Reputation: 2890

The lowest 'caused by' section points you to the underlying exception in your base class constructor: you are calling System.getProperty with a file path; that will probably return null. To me it looks like the whole call shouldn't be there, and you just want to pass the file path to the FileInputStream constructor (or read it from a system property with some key)

Upvotes: 4

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