* @param event message payload
* @deprecated This method is not needed anymore since the use of headers will be in place.
*/
- @Deprecated
+ @Deprecated(forRemoval = true)
public void publishEvent(final String topicName, final String eventKey, final T event) {
final ListenableFuture<SendResult<String, T>> eventFuture
= legacyKafkaEventTemplate.send(topicName, eventKey, event);