4.0.0 io.nats.nats-spring-samples nats-spring-samples-parent 0.5.6 pom io.nats nats-spring-parent 0.5.6 ../pom.xml 2.5.12 3.2.2 1.8 processor-sample listener-sample polling-sample source-sample queue-sample multi-connect-sample autoconfigure-sample connect-error-sample org.springframework.boot spring-boot-maven-plugin