4.0.0 org.springframework.boot spring-boot-starter-parent 2.7.5 com.example demo 0.0.1-SNAPSHOT demo Demo project for Spring Boot 11 org.springframework.boot spring-boot-starter-actuator 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