Packages 
Package Description
org.springframework.kafka
Base package for kafka
org.springframework.kafka.annotation
Package for kafka annotations
org.springframework.kafka.config
Package for kafka configuration
org.springframework.kafka.core
Package for kafka core components
org.springframework.kafka.core.reactive
Reactive component for consumer and producer.
org.springframework.kafka.event
Application Events.
org.springframework.kafka.listener
Package for kafka listeners
org.springframework.kafka.listener.adapter
Provides classes for adapting listeners.
org.springframework.kafka.requestreply
Provides classes for request/reply semantics.
org.springframework.kafka.retrytopic
Package for retryable topic handling.
org.springframework.kafka.security.jaas
Provides classes related to jaas.
org.springframework.kafka.streams
Package for classes related to Kafka Streams.
org.springframework.kafka.streams.messaging
Package for classes related to spring-messaging with Kafka Streams.
org.springframework.kafka.support
Package for kafka support
org.springframework.kafka.support.converter
Package for kafka converters
org.springframework.kafka.support.mapping
Provides classes related to type mapping.
org.springframework.kafka.support.micrometer
Provides classes to support Micrometer.
org.springframework.kafka.support.serializer  
org.springframework.kafka.transaction
Provides classes related to transactions.