anchor.diff:  
   
   [[boot-features-kafka-extra-props]]
  -=== Additional Kafka Properties
  +==== Additional Kafka Properties
   The properties supported by auto configuration are shown in
   <<common-application-properties>>. Note that these properties (hyphenated or camelCase)
   map directly to the Apache Kafka dotted properties for the most part, refer to the Apache
  
positive.code: 
  
  [[boot-features-kafka-receiving-a-message]]
  === Receiving a Message
  When the Apache Kafka infrastructure is present, any bean can be annotated with
  `@KafkaListener` to create a listener endpoint. If no `KafkaListenerContainerFactory`
  has been defined, a default one is configured automatically with keys defined in
  
negative.code: 
  
  [[boot-features-kafka-sending-a-message]]
  ==== Sending a Message
  Spring's `KafkaTemplate` is auto-configured and you can autowire them directly in your own
  beans:
  
  