/** Stops the Event Bus */
 void stopEventBus(@Observes StopBus event) {
   CommandBusOnClient bus = commandBusInst.get();
   bus.stopBus();
 }
 void startEventBus(@Observes StartBus event) throws Exception {
   CommandBusOnClient bus = new CommandBusOnClient();
   injector.get().inject(bus);
   commandBusInst.set(bus);
   bus.startBus(event);
 }