PublishedNotificationTracker publishedNotificationTracker =
this.publishedNotificationTrackerStore().publishedNotificationTracker();
List<Notification> notifications =
this.listUnpublishedNotifications(
publishedNotificationTracker.mostRecentPublishedNotificationId());
MessageProducer messageProducer = this.messageProducer();
try {
for (Notification notification : notifications) {