How to handle popup using Selenium RC?

Handling Popup's using Selenium RC:

public void testPopup() throws Exception {
    selenium.open("http://yoursitename/page.jsp");
    selenium.click("//img[@alt='Share']");
    selenium.waitForPopUp("_blank", "30000");
    selenium.selectWindow("windowId");
    verifyTrue(selenium.isTextPresent("Recommend to a friend"));
    selenium.close();

} 

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;
 }