</code> - if an exception occurs that interferes with the filter's normal operation</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../jakarta/servlet/UnavailableException.html" title="class in jakarta.servlet"><code>UnavailableException</code></a></dd>
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<h4>destroy</h4>
<pre>default&nbsp;void&nbsp;destroy()</pre>
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 Called by the web container to indicate to a f