docs: @Pure
  	public BusLine getBusLine(String name, Comparator<String> nameComparator) {
  		if (name == null) {
  			return null;
  		}
  		final Comparator<String> cmp = nameComparator == null ? BusNetworkUtilities.NAME_COMPARATOR : nameComparator;
  		for (final BusLine busLine : this.busLines) {
  			if (cmp.compare(name, busLine.getName()) == 0) {
  				return busLine;
  			}
  		}
  		return null;
  	}