private FullTextSessionBuilder createSearchFactory() {
   loadCountListener = new LoadCountingListener();
   FullTextSessionBuilder builder =
       new FullTextSessionBuilder()
           .setProperty(
               "hibernate.search.default.worker.backend",
               LeakingBackendQueueProcessor.class.getName())
           .addAnnotatedClass(LocationGroup.class)
           .addAnnotatedClass(Location.class)
           .addLoadEventListener(loadCountListener);
   return builder.build();
 }