><code>reset()</code></a> has
 been called.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <a href="ServletOutputStream.html" title="class in jakarta.servlet"><code>ServletOutputStream</code></a> for writing binary data</dd>
<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">IllegalStateExceptio