title: How to get the URL fragment identifier from HttpServletRequest
body: <p>How do I get the URL fragment identifier from <code>HttpServletRequest</code>? </p>
  
  <p>The <a href="http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html">javadocs</a> doesn't seem to mention it.</p>