AvailabilityZoneList response = new AvailabilityZoneList();
response.availabilityZoneInfo = Lists.newArrayList();
AvailabilityZone availabilityZone = new AvailabilityZone();
availabilityZone.zoneName = "default";
availabilityZone.zoneState = new ZoneState();
availabilityZone.zoneState.available = true;
availabilityZone.hosts = Maps.newHashMap();
response.availabilityZoneInfo.add(availabilityZone);