public static List<Date> computeFireTimesBetween(
OperableTrigger trigger, org.quartz.Calendar cal, Date from, Date to, int num) {
LinkedList<Date> lst = new LinkedList<>();
OperableTrigger t = (OperableTrigger) trigger.clone();
if (t.getNextFireTime() == null) {
t.setStartTime(from);
t.setEndTime(to);
t.computeFirstFireTime(cal);
}
for (int i = 0; i < num; i++) {
Date d = t.getNextFireTime();
if (d != null) {
if (d.before(from)) {
t.triggered(cal);
continue;
}
if (d.after(to)) {
break;
}
lst.add(d);
t.triggered(cal);
} else {
break;
}
}
return java.util.Collections.unmodifiableList(lst);
}
