public static void validateExpression(String cronExpression) throws ParseException {

        new CronExpression(cronExpression);
    }
Indicates whether the specified cron expression can be parsed into a
valid cron expression

@param cronExpression the expression to evaluate
@return a boolean indicating whether the given expression is a valid cron
        expression
larkmidtable-web/larkmt-admin/src/main/java/com/larkmt/cn/admin/core/cron/CronExpression.java