oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/ExecutionException.html" title="class or interface in java.util.concurrent" class="external-link"><code>ExecutionException</code></a>.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link">IllegalArgumentException</a></code> - If given message object cannot be encoded as JSON.</dd>
<dt>See A