a value stored with a previous call to <a href="#putNow(java.lang.String,java.lang.Object)"><code>putNow(java.lang.String, java.lang.Object)</code></a>, its Jakarta Expression Language equivalent, or to the
 request <code>Map</code>, to be promoted to the flash so that is available on the next traversal through the
 lifecycle on this session.
 </p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - if argument <code>key</code> is the name of an entry previously stored to 