Text cannot be parsed to a Duration

[Joerg Spiering]

On a Mac, a calendar entry with the reminder "alert at time of event" can be made.

The parser throws an exception:
net.fortuna.ical4j.data.ParserException: Error at line 51,940: Text cannot be parsed to a Duration
at net.fortuna.ical4j.data.CalendarParserImpl.parse (CalendarParserImpl.java:158)
at net.fortuna.ical4j.data.CalendarBuilder.build (CalendarBuilder.java:183)
at net.fortuna.ical4j.data.CalendarBuilder.build (CalendarBuilder.java:171)
...

Extract from the event:

BEGIN:VALARM
ACTION:AUDIO
TRIGGER:PT
ATTACH:Chord
X-WR-ALARMUID:43F93F98-6524-4F9A-A1A8-02E9A18E4D3E
END:VALARM

The problem is the entry: TRIGGER:PT

The CompatibilityHints.KEY_RELAXED_PARSING doesn't help.

StringReader stringIn = new StringReader(myCalendarString);
CompatibilityHints.setHintEnabled(CompatibilityHints.KEY_RELAXED_PARSING, true);
CalendarBuilder builder = new CalendarBuilder();
calendar = builder.build(stringIn);

How can I handle this problem elegantly?

[Ben Fortuna]

It really is a malformed value for trigger. Even for zero time duration it should be PT0 or something like that. Can you confirm if this was produced from a known application?

NOTE: I don't really monitor these forums regularly, so would suggest adding new issues over on github for tracking:

https://github.com/ical4j/ical4j/issues