">Constructs a new exception with a descriptive message indicating that the servlet is permanently unavailable.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>msg</code> - a <code>String</code> specifying the descriptive message</dd>
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<h4>UnavailableException</h4>
<pre>public&nbsp;UnavailableException(<a href="https://docs.oracle.com/javase/8/doc