if (iFixedOffsetCache == null) {
iFixedOffsetCache = new HashMap<String, DateTimeZone>();
}
DateTimeZone zone = (DateTimeZone) iFixedOffsetCache.get(id);
if (zone == null) {
zone = new FixedDateTimeZone(id, null, offset, offset);
}
iFixedOffsetCache.put(id, zone);
return zone;
}