How to handle browser authentication in Selenium Webdriver using Java?.

 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.firefox.FirefoxDriver;  
  public class AuthinticationRequired {   
   public static void main(String[] a) {   
   // Initialize driver   
    WebDriver driver = new FirefoxDriver();   
   //Maximize browser window    
   driver.manage().window().maximize();   
  //driver.get("http://Username:Password@domain_name");   
     //Go to URL   
    driver.get("http://dipil:bangla@localhost:4040");   
  //Set selenium webdriver get timeout   
  driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);     
    // Browser close    
    driver.close();   
   }   
  }