code: @Handler(priority = 999999, channels = Channel.class)
      public void onStart(Start event)
              throws BackingStoreException, InterruptedException {
          ConfigurationUpdate updEvt = new ConfigurationUpdate();
          addPrefs(updEvt, "/", cache);
          newEventPipeline().fire(updEvt, event.channels()).get();
      }
docs: Intercepts the {@link Start} event and fires a
  {@link ConfigurationUpdate} event.
  
  @param event the event
  @throws BackingStoreException the backing store exception
  @throws InterruptedException the interrupted exception