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<td class="colFirst"><code>class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../UnavailableException.html" title="class in jakarta.servlet">UnavailableException</a></span></code></th>
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<div class="block">Defines an exception that a servlet or filter throws to indicate that it is permanently or temporarily unavailable.</div>
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