assertEquals("Event should be available.", EVENT, handler.context.getEvent());
    assertEquals("Subscriber should be available.", subscriber, handler.context.getSubscriber());
    assertEquals(
        "Method should be available.",
        subscriber.getClass().getMethod("throwExceptionOn", String.class),
        handler.context.getSubscriberMethod());
  }

    assertEquals("Event should be available.", EVENT, handler.context.getEvent());
    assertEquals("Subscriber should be available.", subscriber, handler.context.getSubscriber());
    assertEquals(
        "Method should be available.",
        subscriber.getClass().getMethod("throwExceptionOn", String.class),
        handler.context.getSubscriberMethod());
  }

      private final Object event;
      private final Subscriber subscriber;

      private EventWithSubscriber(Object event, Subscriber subscriber) {
        this.event = event;
        this.subscriber = subscriber;
      }
    }
  }

  /** Implementation of {@link #immediate()}. */
  private static final class ImmediateDispatcher extends Dispatcher {

        assertEquals(1, ((List<?>) pom.getValue("mailingLists")).size());
        assertEquals("project-mailing-list", pom.getValue("mailingLists[1]/name"));
        assertEquals("subscribe@", pom.getValue("mailingLists[1]/subscribe"));
        assertEquals("unsubscribe@", pom.getValue("mailingLists[1]/unsubscribe"));
        assertEquals("post@", pom.getValue("mailingLists[1]/post"));