e to some
 internal error
 <li>if the client identifier is unset
 <li>if an unshared durable subscription already exists with the same name and client identifier, and there is a
 consumer already active
 <li>if a shared durable subscription already exists with the same name and client identifier
 </ul></dd>
</dl>
</li>
</ul>
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<h4>createPublisher</h4>
<pre><a href="../../jakarta/jms/TopicPublisher.html"