public void handle(@Nullable Object unused) {}

    Subscriber toSubscriber() throws Exception {
      return Subscriber.create(eventBus, this, subscriberMethod());
    }

    SubscriberExceptionContext toContext() {
      return new SubscriberExceptionContext(eventBus, new Object(), this, subscriberMethod());
    }

    private static Method subscriberMethod() {
      try {

  private static final class RecordingSubscriberExceptionHandler
      implements SubscriberExceptionHandler {

    public SubscriberExceptionContext context;
    public Throwable exception;

    @Override
    public void handleException(Throwable exception, SubscriberExceptionContext context) {
      this.exception = exception;
      this.context = context;
    }
  }