// create session with any local repo, is redefined anyway below
        RepositorySystemSession rss = new MavenSessionBuilderSupplier(repositorySystem, true)
                .get()
                .withLocalRepositoryBaseDirectories(new File("target/test-classes/apiv4-repo").toPath())
                .build();
        DefaultMavenExecutionRequest mer = new DefaultMavenExecutionRequest();