">String</a>&nbsp;username,
     <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;password)</code>
<div class="block">Validate the provided username and password in the password validation realm used by the web container login
 mechanism configured for the <code>ServletContext</code>.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span cla