docs: public void removeAllBusStops() {
  		for (final BusStop busStop : this.validBusStops) {
  			busStop.setContainer(null);
  			busStop.setEventFirable(true);
  		}
  		for (final BusStop busStop : this.invalidBusStops) {
  			busStop.setContainer(null);
  			busStop.setEventFirable(true);
  		}
  		this.validBusStops.clear();
  		this.invalidBusStops.clear();
  		fireShapeChanged(new BusChangeEvent(this,
  				BusChangeEventType.ALL_STOPS_REMOVED,
  				null,
  				-1,
  				"shape", //$NON-NLS-1$
  				null,
  				null));
  		revalidate();
  	}