title: Chrome driver value gets null after extends to other class
body: <p>I have test class "Test" and a configuration class "Base", in the configuration class I set the driver instance it has been extends to test class "Test"</p>
  
  <p>The value of driver get null for chrome driver but getting value for firefox driver 
  in the test class "Test"</p>
  
  <p>Chrome driver set up:</p>
  
  <pre><code>System.setProperty("webdriver.chrome.driver", "D:\\Eclipse workspace_POC\\chromedriver_win32\\chromedriver.exe");       
  WebDriver driver = new ChromeDriver();
  </code></pre>
  
  <p>Firefox driver set up:</p>
  
  <pre><code>WebDriver driver = new firefoxDriver();
  </code></pre>
  
  <p>can anyone sort the issue.</p>