ejb3/src/main/java/org/jboss/as/ejb3/timerservice/TimerServiceImpl.java
@Override
    public Timer createCalendarTimer(ScheduleExpression schedule) throws IllegalArgumentException,
            IllegalStateException, EJBException {
        return this.createCalendarTimer(schedule, null);
    }
@Override
    public Timer createCalendarTimer(ScheduleExpression schedule) throws IllegalArgumentException,
            IllegalStateException, EJBException {
        return this.createCalendarTimer(schedule, null);
    }
{@inheritDoc}