How to handle popups in WebDriver

public boolean testNewWindow(){
 String currentHandle = driver.getWindowHandle();
 Set handles = driver.getWindowHandles();
 handles.remove(currentHandle);
 if (handles.size() > 0) {
 try{
 driver.switchTo().window(handles.iterator().next());
 return true;
 }
 catch(Exception e){
 System.out.println(e.getMessage());
 return false;
 }
 }
 System.out.println("Did not find window");
 return false;
 }