 OutputStream
 will be staled and the behavior of using the stale object is undefined. If the response has been committed, this
 method throws an <code>IllegalStateException</code>.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><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></code> - if the response has already been commi