context.ungetService(reference);
	public void removedService(ServiceReference reference, Object service) {		//check to see if our URLStreamHandler was unregistered.  If so, look 		//for a lower ranking URLHandler		if (reference == urlStreamServiceReference) {			//this should get us the highest ranking service left, if available			ServiceReference newReference = urlStreamHandlerServiceTracker.getServiceReference();			if (newReference != null) {				setNewHandler(newReference, getRank(newReference));			} else {				handlerRegistered = false;				realHandlerService = new NullURLStreamHandlerService();				ranking = -1;			}		}	}