r in Event">T</a>&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletionStage.html?is-external=true" title="class or interface in java.util.concurrent">CompletionStage</a>&lt;U&gt;&nbsp;fireAsync(U&nbsp;event)</pre>
<div class="block"><p>
 Fires an event asynchronously with the specified qualifiers and notifies asynchronous observers.
 </p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>U</code> - event type</dd>
<dt><span class="paramLabe