able to handle cases in which the client does not choose to join a session, such as when cookies
 are intentionally turned off. Until the client joins the session, <code>isNew</code> returns <code>true</code>. If
 the client chooses not to join the session, <code>getSession</code> will return a different session on each request,
 and <code>isNew</code> will always return <code>true</code>.

 <p>
 Session information is scoped only to the current web application (<code>ServletContext</code>), so information
