session, as the number of milliseconds since
 midnight January 1, 1970 GMT, and marked by the time the container received the request.

 <p>
 Actions that your application takes, such as getting or setting a value associated with the session, do not affect
 the access time.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>long</code> representing the last time the client sent a request associated with this session,
 expressed in milliseconds since 1/1/1970 GMT</dd>
<dt><span class="