Trying to reproduce a problem with interceptors in Vert.x

InterceptorReproducer.java

package com.fileee.experiments.vertx;

import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.eventbus.DeliveryOptions;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.eventbus.Message;
import io.vertx.spi.cluster.hazelcast.HazelcastClusterManager;

public class InterceptorReproducer {

    private static void demo(Vertx vertx) {
        EventBus eventBus = vertx.eventBus();

        eventBus.addInterceptor(sendContext -> {
            Message message = sendContext.message();
            System.out.println("Message intercepted:\n address: " + message.address() + "\n body: " + message.body() + "\n headers: " + message.headers());
            sendContext.next();
        });

        eventBus.consumer("foo", message -> System.out.println("Consumer received: " + message.body()));

        eventBus.publish("foo", "awesome!", new DeliveryOptions().addHeader("someHeader", "someValue"));
    }

    public static void main(String[] args) throws Exception {
        boolean clustered = false;

        if (clustered) {
            Vertx.clusteredVertx(new VertxOptions().setClusterManager(new HazelcastClusterManager()),
                    result -> demo(result.result())
            );
        }
        else {
            demo(Vertx.vertx());
        }

        Thread.sleep(10000);
        System.exit(0);
    }
}