4.0.0 org.springframework.boot spring-boot-samples ${revision} spring-boot-sample-devtools Spring Boot Developer Tools Sample Spring Boot Developer Tools Sample ${basedir}/../.. org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-thymeleaf org.springframework.boot spring-boot-devtools org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin