   throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalStateException</a></pre>
<div class="block">The default behavior of this method is to invoke <a href="ServletRequest.html#startAsync()"><code>ServletRequest.startAsync()</code></a> on the wrapped request object.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Se