4.0.0 org.springframework.boot spring-boot-starter-parent 2.1.7.RELEASE com.bvn13.example.time.duration timeduration 0.0.1-SNAPSHOT timeduration Demo project for Time Duration 1.8 org.springframework.boot spring-boot-starter org.projectlombok lombok true org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin