4.0.0 org.springframework.boot spring-boot-starter-parent 2.4.4 com.example demo 0.0.1-SNAPSHOT demo Demo project for Spring Boot 11 org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-test test org.openjdk.jol jol-core 0.16 org.springframework.boot spring-boot-maven-plugin