title: How Tomcat handles session internally?
body: <p>From my understanding, Servlet Containers handle session using some HTTP protocols like,</p>
  
  <ol>
  <li>Hidden Form Fields</li>
  <li>URL Rewriting</li>
  <li>Cookies</li>
  </ol>
  
  <p>I'm curious how <strong>Apache Tomcat</strong> handles the session internally, though it's irrelevant to average developers.</p>
  
  <p>Is Tomcat using cookies or others also?</p>