title: Under what conditions is a JSESSIONID created?
body: <p>When / what are the conditions when a <code>JSESSIONID</code> is created?</p>
  
  <p>Is it per a domain? For instance, if I have a Tomcat app server, and I deploy multiple web applications, will a different <code>JSESSIONID</code> be created per context (web application), or is it shared across web applications as long as they are the same domain?</p>