MavenProject project = new MavenProject( model, repositorySystem );

        TestModelDefaultsInjector injector = new TestModelDefaultsInjector();

        injector.injectDefaults( model );

        project.setArtifacts( project.createArtifacts( null ) );

        String key = ArtifactUtils.versionlessKey( groupId, artifactId );

        Map artifactMap = project.getArtifactMap();