System.out.println("Success: " + key);
	public Object queryImageId(Image image) {		String hash = checksumImage(image);		if(imageCache.get(hash) != null) {			Iterator itr = images.keySet().iterator();			while(itr.hasNext()) {				Object key = itr.next();				if(images.get(key).equals(hash)) {					System.out.println("Success: " + key);					return key;				}			}		}		return Integer.toString(-1);	}