4.0.0 spring-kafka spring-kafka Intro to Kafka with Spring com.baeldung parent-boot-2 0.0.1-SNAPSHOT ../parent-boot-2 org.springframework.boot spring-boot-starter org.springframework.kafka spring-kafka ${spring-kafka.version} com.fasterxml.jackson.core jackson-databind org.springframework.kafka spring-kafka-test ${spring-kafka.version} test org.testcontainers kafka ${testcontainers-kafka.version} test commons-collections commons-collections 3.2.1 2.7.2 1.15.3