question: public static void addNotificationHandler ( String service , NotificationHandler handler ) throws AlreadyRegisteredException { if ( notificationHandlers . containsKey ( service ) ) { throw new AlreadyRegisteredException ( PLLBundle . getString ( "alreadyRegistered" ) + service ) ; } notificationHandlers . put ( service , handler ) ; }
target:  Adds a notification handler for a service. This handler is used by the Platform Low Level servlet to pass notifications for processing.