this.request = request;
    }

    @Override
    public File getPomFile() {
        return request.getPomFile();
    }

    @Override
    public FilterModelBuildingRequest setPomFile(File pomFile) {
        request.setPomFile(pomFile);

        return this;
    }

    @Override
    public ModelSource getModelSource() {
        return request.getModelSource();
    }

    @Override

     * Creates a shallow copy of the specified request.
     *
     * @param request The request to copy, must not be {@code null}.
     */
    public DefaultModelBuildingRequest(ModelBuildingRequest request) {
        setPomFile(request.getPomFile());
        setModelSource(request.getModelSource());
        setValidationLevel(request.getValidationLevel());
        setProcessPlugins(request.isProcessPlugins());

            // (has consequences in inheritance algorithm since getProjectDirectory() returns null)
            parent = parent.clone();
            parent.setPomFile(null);
            child = child.clone();
            child.setPomFile(null);
        }

        SimpleProblemCollector problems = new SimpleProblemCollector();

        Model assembled = child.clone();

    }

    @Test
    void testCloneWithBaseDir() throws Exception {
        File f = getFileForClasspathResource("canonical-pom.xml");
        MavenProject projectToClone = getProject(f);
        projectToClone.setPomFile(new File(new File(f.getParentFile(), "target"), "flattened.xml"));
        MavenProject clonedProject = projectToClone.clone();

     */
    ModelSource getModelSource();

    /**
     * Sets the source of the POM to process. Eventually, either {@link #setModelSource(ModelSource)} or
     * {@link #setPomFile(File)} must be set.
     *
     * @param modelSource The source of the POM to process, may be {@code null}.
     * @return This request, never {@code null}.
     */

        MavenProject mavenProject = new MavenProject();
        mavenProject.setGroupId(GROUP_ID);
        mavenProject.setArtifactId(artifactId);
        mavenProject.setVersion("1.0");
        mavenProject.setPomFile(new File(artifactId, "pom.xml"));
        mavenProject.setCollectedProjects(new ArrayList<>());
        return mavenProject;
    }

                    .setMessage("Non-readable POM " + modelSource.getLocation() + ": " + msg)
                    .setException(e));
            throw problems.newModelBuildingException();
        }

        model.setPomFile(pomFile);

        problems.setSource(model);
        modelValidator.validateRawModel(model, request, problems);

        if (hasFatalErrors(problems)) {
            throw problems.newModelBuildingException();

    }

    /**
     * Sets project {@code file} without changing project {@code basedir}.
     *
     * @since 3.2.4
     */
    public void setPomFile(File file) {
        this.file = file;
    }

    /**
     * @deprecated Replaced by {@link #getBaseDirectory()} for migrating from {@code File} to {@code Path}.
     */
    @Deprecated(since = "4.0.0")

     */
    @Deprecated
    public java.io.File getPomFile() {
        return (getDelegate().getPomFile() != null) ? getDelegate().getPomFile().toFile() : null;
    }

    @Deprecated
    public void setPomFile(java.io.File pomFile) {
        update( getDelegate().withPomFile(pomFile != null ? pomFile.toPath() : null));
    }

    /**
     * Gets the POM file for the corresponding project (if any).
     *