face in java.io" class="externalLink"><code>UnsupportedEncodingException</code></a>. Content for an unknown encoding can be sent
 with the <a href="ServletOutputStream.html" title="class in jakarta.servlet"><code>ServletOutputStream</code></a> returned from <a href="#getOutputStream()"><code>getOutputStream()</code></a>.
 <p>
 Containers may choose to log calls to this method that use an invalid or unrecognised character encoding.
 <p>
 Containers must communicate the content type and the character encoding