if (groupId == null && model.getParent() != null) {
            groupId = model.getParent().getGroupId();
        }
        return groupId;
    }

    private String getVersion(Model model) {
        String version = model.getVersion();
        if (version == null && model.getParent() != null) {
            version = model.getParent().getVersion();
        }
        return version;
    }

     */
    public MavenProject getParent() {
        return parent;
    }

    public void setParent(MavenProject parent) {
        this.parent = parent;
    }

    public boolean hasParent() {
        return getParent() != null;
    }

    public File getFile() {
        return file;
    }

                            .listener(listener)
                            .build();

                    if (pomFile != null) {
                        project.setRootDirectory(rootLocator.findRoot(pomFile.getParent()));
                    }

                    ModelBuilderResult result;
                    try {
                        result = modelBuilder.build(request);

    }

    /* MNG-3567*/
    @Test
    void testParentInterpolation() throws Exception {
        PomTestWrapper pom = buildPom("parent-interpolation/sub");
        pom = new PomTestWrapper(pom.getMavenProject().getParent());
        assertEquals("1.3.0-SNAPSHOT", pom.getValue("build/plugins[1]/version"));
    }

    /*
    public void testMaven()
        throws Exception
    {

        this.versionProcessor = versionProcessor;
    }

    @Override
    public void validateFileModel(Model m, ModelBuilderRequest request, ModelProblemCollector problems) {

        Parent parent = m.getParent();
        if (parent != null) {
            validateStringNotEmpty(
                    "parent.groupId", problems, Severity.FATAL, Version.BASE, parent.getGroupId(), parent);

            validateStringNotEmpty(