fix(notifications): Notifier::prepare() threw \InvalidArgumentExcepti…

lib/Notification/Notifier.php

@@ -13,6 +13,7 @@
 use OCP\Notification\IAction;
 use OCP\Notification\INotification;
 use OCP\Notification\INotifier;
+use OCP\Notification\UnknownNotificationException;
 
 class Notifier implements INotifier {
 	public const SUBJECT = 'announced';
@@ -64,12 +65,12 @@ public function getName(): string {
 	 * @param INotification $notification
 	 * @param string $languageCode The code of the language that should be used to prepare the notification
 	 * @return INotification
-	 * @throws \InvalidArgumentException When the notification was not prepared by a notifier
+	 * @throws UnknownNotificationException When the notification was not prepared by a notifier
 	 */
 	public function prepare(INotification $notification, string $languageCode): INotification {
 		if ($notification->getApp() !== $this->appName) {
 			// Not my app => throw
-			throw new \InvalidArgumentException();
+			throw new UnknownNotificationException();
 		}
 
 		// Read the language from the notification
@@ -108,7 +109,7 @@ public function prepare(INotification $notification, string $languageCode): INot
 
 			default:
 				// Unknown subject => Unknown notification => throw
-				throw new \InvalidArgumentException();
+				throw new UnknownNotificationException();
 		}
 	}
 }