return getService(VersionResolver.class).resolve(this, artifact).getVersion();
    }

    @Override
    public List<Version> resolveVersionRange(ArtifactCoordinate artifact) {
        return getService(VersionRangeResolver.class).resolve(this, artifact).getVersions();
    }

    @Override
    public Type requireType(String id) {

            MIN_CLIENT_VERSION.getVersion(),
            createCurrentVersionMessage(),
            MIN_CLIENT_VERSION.getVersion()));
    }

    private String createCurrentVersionMessage() {
        if (consumerVersion == null) {
            return "";
        } else {

        when(project.getArtifactId()).thenReturn("maven-embedder");
        when(project.getPackaging()).thenReturn("jar");
        when(project.getName()).thenReturn("Apache Maven Embedder");
        when(project.getVersion()).thenReturn("3.5.4-SNAPSHOT");
        when(project.getFile()).thenReturn(new File(basedir, "maven-embedder/pom.xml"));
        when(event.getProject()).thenReturn(project);

        return Objects.equals(a1.getGroupId(), a2.getGroupId())
                && Objects.equals(a1.getArtifactId(), a2.getArtifactId())
                && Objects.equals(a1.getVersion(), a2.getVersion());
    }

    private Map<String, String> toProperties(Map<String, String> dominant, Map<String, String> recessive) {
        Map<String, String> props = new HashMap<>();
        if (recessive != null) {

        String realmId = "coreExtension>" + extension.getGroupId() + ":" + extension.getArtifactId() + ":"
                + extension.getVersion();
        final ClassRealm realm = classWorld.newRealm(realmId, null);
        Set<String> providedArtifacts = Collections.emptySet();
        String classLoadingStrategy = extension.getClassLoadingStrategy();

        return new DefaultArtifact(
                plugin.getGroupId(),
                plugin.getArtifactId(),
                null,
                "jar",
                plugin.getVersion(),
                session.getArtifactTypeRegistry().get("maven-plugin"));
    }

    public Artifact resolve(Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session)

        attributes.attribute(GradlePluginApiVersion.GRADLE_PLUGIN_API_VERSION_ATTRIBUTE, instantiator.named(GradlePluginApiVersion.class, GradleVersion.current().getVersion()));

        DependencyHandler dependencyHandler = resolutionContext.getDependencyHandler();

        daemonArgs.add("org.gradle.launcher.daemon.bootstrap.GradleDaemon");
        // Version isn't used, except by a human looking at the output of jps.
        daemonArgs.add(GradleVersion.current().getVersion());

        // Serialize configuration to daemon via the process' stdin
        StreamByteBuffer buffer = new StreamByteBuffer();

        // resolve plugin version as necessary
        if (plugin.getVersion() == null) {
            PluginVersionRequest versionRequest = new DefaultPluginVersionRequest(plugin, session, repositories);
            try {
                plugin.setVersion(pluginVersionResolver.resolve(versionRequest).getVersion());
            } catch (PluginVersionResolutionException e) {

        MavenSession session = createMavenSession(pom);
        MavenProject project = session.getCurrentProject();

        for (Plugin buildPlugin : project.getBuildPlugins()) {
            assertNotNull(buildPlugin.getVersion(), "Missing version for build plugin " + buildPlugin.getKey());
        }
    }

    @Test
    void testBuildFromModelSourceResolvesBasedir() throws Exception {