4.0.0 polled-consumer jar polled-consumer Demo project for a polled consumer org.springframework.boot spring-boot-starter-parent 2.3.4.RELEASE Hoxton.BUILD-SNAPSHOT org.springframework.cloud spring-cloud-dependencies ${spring-cloud.version} pom import org.springframework.boot spring-boot-starter-test test org.springframework.cloud spring-cloud-stream-binder-kafka org.springframework.kafka spring-kafka-test org.springframework.boot spring-boot-maven-plugin