taskEngine = TaskEngine.getInstance();
sparkManager = new SparkManager(taskEngine);
sparkManager.start();
// Create and start the bookmark interceptor, which adds server-managed bookmarks when
// a user requests their bookmark list.
bookmarkInterceptor = new BookmarkInterceptor();
bookmarkInterceptor.start();
// Create and start the Spark version manager
sparkVersionManager = new SparkVersionManager();
sparkVersionManager.start();