4.0.0 org.springframework.boot spring-boot-starter-parent 2.3.0.RELEASE com.baeldung hexagonal-architecture 1.0 hexagonal-architecture Project for hexagonal architecture in java 1.8 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-data-mongodb org.springframework.boot spring-boot-starter-test test org.junit.vintage junit-vintage-engine org.mockito mockito-core test org.springframework.boot spring-boot-maven-plugin