presents the completion of all executions in the schedule.
 The Jakarta EE product attempts to run the method at the scheduled times
 until its future is completed or the method returns a non-null result value
 or raises an exception. The future is always accessible from within the method via
 <code>Asynchronous.Result</code> which returns a typed <code>CompletableFuture</code> which matches the return
 type of the method. If the method return type is <code>void</code> then <code>Asynchronous.Result</code>
