ltColor">
<td class="colFirst"><code>&lt;T extends <a href="../http/HttpUpgradeHandler.html" title="interface in jakarta.servlet.http">HttpUpgradeHandler</a>&gt;<br>T</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">HttpServletRequest.</span><code><span class="memberNameLink"><a href="../http/HttpServletRequest.html#upgrade(java.lang.Class)">upgrade</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html?is-external=true" title="c