uct Provider raises
 <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/UnsupportedOperationException.html" title="class or interface in java.lang" class="external-link"><code>UnsupportedOperationException</code></a>
 if other return types are used or if the annotation is placed at the class
 level. The injection target of <code>ElementType.TYPE</code> is to be used only
 by the CDI extension that is implemented by the Jakarta EE Product Provider to
 register the asynchronous me