4.0.0 spring-kafka-4 spring-kafka-4 Intro to Kafka with Spring com.baeldung parent-boot-3 0.0.1-SNAPSHOT ../parent-boot-3 org.springframework.boot spring-boot-starter org.springframework.kafka spring-kafka ${spring-kafka.version} org.springframework.kafka spring-kafka-test test org.testcontainers kafka test org.testcontainers junit-jupiter test org.springframework.boot spring-boot-maven-plugin com.baeldung.spring.kafka.KafkaApplication 3.1.2 3.2.2 5.10.2