es not explicitly declare any qualifier, the observer method observes events with no qualifier.
 </p>
 
 <p>
 The event parameter type may contain a type variable or wildcard.
 </p>
 
 <p>
 In addition to the event parameter, observer methods may declare additional parameters, which may declare qualifiers. These
 additional parameters are injection points.
 </p>
 
 <pre>
 public void afterLogin(&#064;ObservesAsync LoggedInEvent event, &#064;Manager User user, Logger log) { ... }
 </pre>
 
 <p>
 A bean (or e