public final static void stop() throws EXistException { stop(DEFAULT_INSTANCE);
public final static void stop(String id) throws EXistException { BrokerPool instance = (BrokerPool) instances.get(id); if (instance != null) { instance.shutdown(); } else throw new EXistException("instance with id " + " is not available");
	public final static void stop() throws EXistException {		stop(DEFAULT_INSTANCE);	}