ArchUniut.java

    @ArchTest
    public static final ArchRule exercise2 =
            classes().that().haveSimpleNameEndingWith("Service")
                    .and()
                    .implement(HasName.Predicates.nameEndingWith("UseCase"))
                    .should().beAnnotatedWith(UseCase.class);

    @ArchTest
    public static final ArchRule exercise2a =
            classes().that().haveSimpleNameEndingWith("Service")
                    .and()
                    .doNotImplement(HasName.Predicates.nameEndingWith("UseCase"))
                    .should().notBeAnnotatedWith(UseCase.class);