4.0.0 org.springframework.boot spring-boot-starter-parent 2.2.0.RELEASE com.baeldung.hexagonal.arch hexagonal-architecture 0.0.1-SNAPSHOT hexagonal-architecture Demo project for Spring Boot 1.8 org.springframework.boot spring-boot-starter-data-jpa org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.junit.vintage junit-vintage-engine org.springframework.boot spring-boot-maven-plugin