Jdk8Methods.requireNonNull(localDateTime, "localDateTime");
Jdk8Methods.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<R>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;