Using VaadinSession with Spring scheduler

This works, but is this the best and/or only approach? If I give the class either @VaadinSessionScope or @UIScope, the scheduler won’t schedule.

    public static void setVaadinSession(VaadinSession session) {
        vaadinSession = session;
    }

    @Scheduled(cron = "0 * * * * ?")
    public void eachMinute() {
        if (vaadinSession != null) {
		 vaadinSession.lock();
            try {
                userTimezone = (String) vaadinSession.getAttribute(USER_TIMEZONE);
            } finally {
                vaadinSession.unlock();
            }
        }
    }