title: How to use .jsf extension in URLs?
body: <p>I'm developing a JSF 2 web application. For prestige purpouses I would like that every URL ends with <code>.jsf</code> extension. Now it ends with <code>.xhtml</code>. If I change it directly to <code>.jsf</code> in web browser address bar, then a HTTP 500 error is shown. </p>
  
  <p>How can I set it to <code>.jsf</code>?</p>