private String findAgencyNameByRouteId(ObaReferences refs, String routeId) {
   String agencyId = refs.getRoute(routeId).getAgencyId();
   return refs.getAgency(agencyId).getId();
 }
 public synchronized void populateStops(List<ObaStop> stops, ObaReferences refs) {
   populate(stops, refs.getRoutes());
 }