Keep the old method as a fallback and adjust the tests

apps/comments/lib/AppInfo/Application.php

apps/federatedfilesharing/appinfo/app.php

apps/twofactor_backupcodes/lib/AppInfo/Application.php

apps/updatenotification/lib/AppInfo/Application.php

apps/user_ldap/appinfo/app.php

core/Application.php

lib/private/Notification/Manager.php

lib/public/Notification/AlreadyProcessedException.php

lib/public/Notification/IManager.php

tests/lib/Notification/ActionTest.php

tests/lib/Notification/DummyApp.php

tests/lib/Notification/DummyNotifier.php

tests/lib/Notification/ManagerTest.php

tests/lib/Notification/NotificationTest.php