[java] Getting the URL of the current page using Selenium WebDriver

I'm attempting to get the URL of the currently open page. I am using Selenium WebDriver and Java.

I am accessing the current URL via:

WebDriver driver = new WebDriver();
String url = driver.getCurrentUrl();

however, the URL does not appear to actually reflect where I currently am.

My current test case involves going to the NYT website and then clicking on the "Technology" link. However, url appears to always be http://www.nytimes.com/, regardless of the URL that is displayed in the address bar.

How do I actually access the value of the URL that's in the address bar so I can tell what page I'm actually on?