 this request and return the new session id.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new session id</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if there is no session associated with the request</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Servlet 3.1</dd>
</dl>
<