public Date getNextValidTimeAfter(Date date) {
        return getTimeAfter(date);
    }
Returns the next date/time <I>after</I> the given date/time which
satisfies the cron expression.

@param date the date/time at which to begin the search for the next valid
            date/time
@return the next valid date/time
server/core/src/main/java/com/ke/schedule/server/core/common/CronExpression.java