RFC 2445 section 4.1 says that long lines should be "folded" in an iCalendar file by starting the next line with a whitespace character, which should be discarded when reading the file. However, the load() method throws an exception when reading a file with such a wrapped line:
Exception in thread "main" net.fortuna.ical4j.data.ParserException: Error at line 11: Illegal property [ WRAPPED...
2007-07-17 16:59:39 UTC in iCal4j