https://github.com/patrickvankann/spring-halbuilder/issues/3
https://github.com/patrickvankann/spring-halbuilder/issues/4
https://github.com/patrickvankann/spring-halbuilder/issues/5
https://github.com/patrickvankann/spring-halbuilder/issues/6
https://github.com/patrickvankann/spring-halbuilder/issues/7