in rcomp-kafka/src/main/java/org/apache/karaf/rcomp/kafka/KafkaDestination.java [37:43]
public KafkaDestination(Properties config, String topic, Class<? extends T> type) {
this.producer = new KafkaProducer(config);
this.topic = topic;
if (!((type.equals(byte[].class) || type.equals(ProducerRecord.class)))) {
throw new IllegalArgumentException("Curently only byte[] and ProducerRecord are supported");
}
}