4.0.0 org.springframework.boot spring-boot-starter-parent 2.4.2 com.baeldung.docker heap-sizing 0.0.1-SNAPSHOT heap-sizing Demo project for Spring Boot 11 org.springframework.boot spring-boot-starter-webflux org.springframework.boot spring-boot-starter-test test io.projectreactor reactor-test test org.springframework.boot spring-boot-maven-plugin heapsizing-demo com.google.cloud.tools jib-maven-plugin 2.7.1 heapsizing-demo-jib