Simple not optimized Apache Wicket IEventDispatcher implementation

PayloadEventDispatcher.java

public class MyPayloadEventDispatcher implements IEventDispatcher {

  @Override
  public void dispatchEvent(Object sink, IEvent event, Component component) {
    // Check that the payload isn't null and that the sink, the receiver, has the annotation
    if (event.getPayload() != null && sink.getClass().isAnnotationPresent(EventPayloadReceiver.class)) {
      EventPayloadReceiver eventReceiver = sink.getClass().getAnnotation(EventPayloadReceiver.class);

      // Check that the annotation is configured with the current event
      if (Arrays.asList(eventReceiver.value()).contains(event.getPayload().getClass())) {
        // Go through all methods
        for (Method method : sink.getClass().getDeclaredMethods()) {
          // Check so the annoation is on the method
          if (method.isAnnotationPresent(OnEventPayload.class)) {
            OnEventPayload onEvent = method.getAnnotation(OnEventPayload.class);

            // Check that the method annotation is configured with the current event
            if (Arrays.asList(onEvent.value()).contains(event.getPayload().getClass())) {
              try {
                Class[] parTypes = method.getParameterTypes();

                // Check that the method accepts one parameter and that it is the same type as the event
                if (parTypes.length == 1 && parTypes[0].isAssignableFrom(event.getPayload().getClass())) {
                  // Deliver the event
                  method.invoke(sink, event.getPayload());
                }
              } catch (Exception e) {
                throw new RuntimeException("Exception when delivering event object " + event.getPayload().getClass() + " to component " + sink.getClass() + " and method " + method.getName(), e);
              }

              // We only deliver an event once to a single component, if there are multiple methods configured for it we ignore all but one
              return;
            }
          }
        }
      }
    }
  }
}