ut for partial view rendering.  Within a given
 response, components can use either the ResponseStream or the
 ResponseWriter, but not both.</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>ResponseWriter</code> for output</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://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 this metho