/**
     * Set the group ID of the extension's artifact.
     *
     * @param groupId a groupId object.
     */
    public void setGroupId(String groupId) {
        this.groupId = groupId;
    } // -- void setGroupId( String )

    /**
     * Set the version of the extension.
     *
     * @param version a version object.
     */
    public void setVersion(String version) {

    }

    @Test
    void testDependencies() {
        DependencyManagement dm = new DependencyManagement();
        Dependency d1 = new Dependency();
        d1.setGroupId("myGroupId");
        assertNotNull(dm.getDependencies());
        assertEquals(0, dm.getDependencies().size());
        dm.addDependency(d1);
        assertNotNull(dm.getDependencies());

     */
    ModelData(ModelSource source, Model model, String groupId, String artifactId, String version) {
        this.source = source;
        this.model = model;
        setGroupId(groupId);
        setArtifactId(artifactId);
        setVersion(version);
    }

    public ModelSource getSource() {
        return source;
    }

    /**
     * Gets the model being wrapped.
     *

    String version;
    String classifier;
    String type;
    String scope;

    transient Object datum;

    public String getGroupId() {
        return groupId;
    }

    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    public String getArtifactId() {
        return artifactId;
    }

    public void setArtifactId(String artifactId) {

        Dependency dependency2 = new Dependency();
        dependency2.setArtifactId("dep2");

        project = new Project();
        project.setModelVersion("4.0.0");
        project.setGroupId("org.apache.maven");
        project.setArtifactId("maven-core");
        project.setName("Maven");
        project.setVersion("2.0-SNAPSHOT");
        project.setScm(new Scm());

    void setScope(String scope);

    VersionRange getVersionRange();

    void setVersionRange(VersionRange newRange);

    void selectVersion(String version);

    void setGroupId(String groupId);

    void setArtifactId(String artifactId);

    boolean isSnapshot();

    void setResolved(boolean resolved);

    boolean isResolved();

    @Override
    public void selectVersion(String version) {
        artifact.selectVersion(version);
    }

    /** {@inheritDoc} */
    @Override
    public void setGroupId(String groupId) {
        artifact.setGroupId(groupId);
    }

    /** {@inheritDoc} */
    @Override
    public void setArtifactId(String artifactId) {
        artifact.setArtifactId(artifactId);
    }

    }

    public String toDomainString() {
        return groupId + ":" + artifactId;
    }

    public String getGroupId() {
        return groupId;
    }

    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    public String getArtifactId() {
        return artifactId;
    }

    public void setArtifactId(String name) {

    //
    // ----------------------------------------------------------------------

    public PluginDescriptor() {}

    public PluginDescriptor(PluginDescriptor original) {
        this.setGroupId(original.getGroupId());
        this.setArtifactId(original.getArtifactId());
        this.setVersion(original.getVersion());
        this.setGoalPrefix(original.getGoalPrefix());

        }
    }

    @Override
    public void selectVersion(String version) {
        this.version = version;
        setBaseVersionInternal(version);
    }

    @Override
    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    @Override
    public void setArtifactId(String artifactId) {
        this.artifactId = artifactId;
    }

    @Override