Bug report

Summary

When a Confluence user creates birthday event setting 'END' to year 2090 for example. Also, has recurring set to "Yearly", Reminder set for 5 minutes.

The above set up results in event not showing up in the UI but registered in DB (Tablename : AO950DC3_TC_EVENTS)

Every 5 minutes logs get spammed with below entries,

2018-10-23 04:40:00,166 ERROR [team-calendars-worker-2] [extra.calendar3.util.DefaultAsynchronousTaskExecutor] call Exception happens on task execution:
java.lang.IllegalArgumentException: Range start must be before range end
	at net.fortuna.ical4j.model.DateRange.<init>(DateRange.java:71)
	at net.fortuna.ical4j.model.Period.<init>(Period.java:101)

Steps to Reproduce

1. Create birthday event in Team Calendar
2. Set the start date and end date (for example 3rd December 2018 - 3rd December 2090)
3. Set the Recurrence as Yearly
4. Set Reminder for 5 minutes
5. Issue was reproducible in Team Calendar version 6.0.22, 6.0.25 and 6.0.27

Expected Results

Event should not be created and an error message indicating end date is not valid

Actual Results

UI doesn't display the event

Workaround

Identify and delete the event from the DB. Following SQL query might help in identifying the large duration (range) values:

select "AO_950DC3_TC_SUBCALS"."ID",  "AO_950DC3_TC_EVENTS"."ID",   "START", to_timestamp("START" / 1000) as START_DATE, "END", to_timestamp("END" / 1000) as END_DATE, DATE_PART('day', to_timestamp("END" / 1000) - to_timestamp("START" / 1000)) as EventDurationDays,  "RECURRENCE_RULE", "SUB_CALENDAR_ID", "UTC_START", "UTC_END"
FROM "AO_950DC3_TC_EVENTS" inner join "AO_950DC3_TC_SUBCALS" on "AO_950DC3_TC_EVENTS"."SUB_CALENDAR_ID" = "AO_950DC3_TC_SUBCALS"."ID"
where DATE_PART('day', to_timestamp("END" / 1000) - to_timestamp("START" / 1000)) > 50

Note:
This is affecting any events created and not just Birthday events.