dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalStateException</a></code> - If the endpoint
         has already been published.</dd>
</dl>
</li>
</ul>
<a id="getExecutor()">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getExecutor</h4>
<pre class="methodSignature">public abstract&nbsp;<a href="https://docs.oracle.com/en/java/java