NullPointer Exception In running testCases via Selenium webDriver in Chrome

Download the chrome driver from http://code.google.com/p/chromedriver/downloads/list

Initialize your driver object in the following manner -

System.setProperty("webdriver.chrome.driver","C:\\chromedriver.exe");

    WebDriver driver = new ChromeDriver();

By doing this the chrome driver works properly.

This is how do I initialize the ChromeDriver:

public RegulationUI() throws Exception{
   ChromeDriverService service = ChromeDriverService.createDefaultService();
   File file = new File(RegulationUI.class.getResource("/chromedriver.exe").toURI());
   System.setProperty(ChromeDriverService.CHROME_DRIVER_EXE_PROPERTY, file.getAbsolutePath());                
   ChromeOptions options = new ChromeOptions();
   options.addArguments("--start-maximized");
   driver = new ChromeDriver(service,options);
}

BTW my test class is named RegulationUI

Try this, it works for me and moreover, I know that this is "multicomputer" solution - our project is in subversion and this way everybody can run it, even if we have differently setup where exactly on disk the "working folder" for IDE is

    Please download chromedriver.exe for Google chrome browser 
    please download IEdriver.exe for Internet explore.

Please And kept these files in a root folder of windows for simplicity. Lets consider your operating systems installed on c:\ (C Driver) create a folder name Selenium on C-Drive and Kept these binary(.exe) files. like c:\selenium

    in your Testcase/testScript Write as 

    //For Chrome Browser:
    Webdriver driver = new ChromeDriver();
    java.io.File file = new File("c:\\selenium\\chromedriver.exe");     
    System.setProperty("webdriver.chrome.driver", file.getAbsolutePath());

If you are using maven then try to use following in your pom:

    <dependency>
        <groupId>io.github.bonigarcia</groupId>
        <artifactId>webdrivermanager</artifactId>
        <version>RELEASE</version>
    </dependency> 

and use it like this for chrome in your setup:

    ChromeDriverManager.getInstance().setup();
    driver = new ChromeDriver();