WaitingServiceTracker<ActorSystemProvider> tracker = WaitingServiceTracker.create(
ActorSystemProvider.class, bundleContext);
ActorSystemProvider delegate = tracker.waitForService(WaitingServiceTracker.FIVE_MINUTES);
WaitingServiceTracker<ActorSystemProvider> tracker = WaitingServiceTracker.create(
ActorSystemProvider.class, bundleContext);
ActorSystemProvider delegate = tracker.waitForService(WaitingServiceTracker.FIVE_MINUTES);