vide an <a href="ManagedTaskListener.html" title="interface in jakarta.enterprise.concurrent"><code>ManagedTaskListener</code></a> to receive
 notifications of lifecycle events, through the use of <a href="ManagedTask.html" title="interface in jakarta.enterprise.concurrent"><code>ManagedTask</code></a>
 interface.
 <p>

 Asynchronous tasks are typically submitted to the ManagedScheduledExecutorService using one
 of the <code>submit</code> or <code>schedule</code>methods, each of which return a <code>Future<