public static long getRepeatNextTriggerTime(JobPo jobPo) {
        long firstTriggerTime = Long.valueOf(jobPo.getInternalExtParam(Constants.FIRST_FIRE_TIME));
        long now = SystemClock.now();
        long remainder = (now - firstTriggerTime) % jobPo.getRepeatInterval();
        if (remainder == 0) {
            return now;
        }
        return now + (jobPo.getRepeatInterval() - remainder);
    }
@author Robert HG (254963746@qq.com) on 3/26/16.
lts-core/src/main/java/com/github/ltsopensource/core/support/JobUtils.java