* Validate with: `mvn test -Dtest=CounterApplicationI`
* Turning on the caching forces the application, to serialize and
  deserialize _every_ message, hence, revealing the bug, that was only
  detected by the `CounterStreamProcessorToplogyTest` before, that always
  behaves like this.
                                "logging.level.de.juplo=DEBUG",
                                "juplo.wordcount.counter.bootstrap-server=${spring.embedded.kafka.brokers}",
                                "juplo.wordcount.counter.commit-interval=0",
-                               "juplo.wordcount.counter.cacheMaxBytes=0",
                                "juplo.wordcount.counter.input-topic=" + TOPIC_IN,
                                "juplo.wordcount.counter.output-topic=" + TOPIC_OUT })
 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })