code: @Pure
  	public BusStop getBusStop(UUID id) {
  		if (id == null) {
  			return null;
  		}
  		for (final BusStop busStop : this.validBusStops) {
  			final UUID busid = busStop.getUUID();
  			if (id.equals(busid)) {
  				return busStop;
  			}
  		}
  		for (final BusStop busStop : this.invalidBusStops) {
  			final UUID busid = busStop.getUUID();
  			if (id.equals(busid)) {
  				return busStop;
  			}
  		}
  		return null;
  	}
docs: Replies the bus stop with the specified id.
  
  @param id is the desired identifier
  @return BusStop or <code>null</code>