while (uit.hasNext()) {
IPlaneUpdateObject puo = uit.next();
if (radarPlaneList.containsKey(puo.getIp())) {
IRadarPlaneObject current = radarPlaneList.get(puo.getIp());
handlePlaneUpdate(current, current.getActiveController(), puo.getActiveController());
current.update(puo);
} else {
this.addPlane(puo);
}
uit.remove();