Improve event exception handling (always convert RECURRENCE-ID DATE-TIME to...

import java.net.URI;

import java.net.URISyntaxException;

import java.text.DateFormat;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.LinkedList;

import java.util.List;

		buildEntry(builder, exception, false);

		builder.withValue(Events.ORIGINAL_SYNC_ID, exception.getName());

		// Some servers (iCloud, for instance) return RECURRENCE-ID with DATE-TIME even if

		// the original event is an all-day event. Workaround: determine value of ORIGINAL_ALL_DAY

		// by original event type (all-day or not) and not by whether RECURRENCE-ID is DATE or DATE-TIME.

		final RecurrenceId recurrenceId = exception.getRecurrenceId();

		final boolean originalAllDay = master.isAllDay();

		Date date = recurrenceId.getDate();

		if (originalAllDay && date instanceof DateTime) {

			String value = recurrenceId.getValue();

			if (value.matches("^\\d{8}T\\d{6}$"))

		if (originalAllDay && date instanceof DateTime) {       // correct VALUE=DATE-TIME RECURRENCE-IDs to VALUE=DATE

			final DateFormat dateFormatDate = new SimpleDateFormat("yyyyMMdd");

			final String dateString = dateFormatDate.format(recurrenceId.getDate());

			try {

					// no "Z" at the end indicates "local" time

					// so this is a "local" time, but it should be a ical4j Date without time

					date = new Date(value.substring(0, 8));

				date = new Date(dateString);

			} catch (ParseException e) {

				Log.e(TAG, "Couldn't parse DATE part of DATE-TIME RECURRENCE-ID", e);

			}