System.out.println("    Content root: " + root.getRootDirectory());
                    System.out.println("    source dirs:");
                    for (IdeaSourceDirectory dir: root.getSourceDirectories()) {
                        System.out.println("      " + dir);
                    }

                    System.out.println("    test dirs:");

            System.out.println("Project directory: " + project.getProjectDirectory());
            System.out.println("Source directories:");
            for (EclipseSourceDirectory srcDir : project.getSourceDirectories()) {
                System.out.println(srcDir.getPath());
            }
            System.out.println("Project classpath:");
            for (ExternalDependency externalDependency : project.getClasspath()) {

    //     * or an empty collection when the location is not set or is invalid.
    //     *
    //     * @return List
    //     */
    //    List getSourceDirectories();
    //
    //    /**
    //     * Returns a {@link java.io.File}s which represent the locations of the Javadoc for this platform,
    //     * or empty collection if the location is not set or invalid
    //     *

        // Add the source of the source set to the include paths to resolve any headers that may be in source directories
        task.includes(sourceSet.getSource().getSourceDirectories());

        final Project project = task.getProject();
        task.source(sourceSet.getPrefixHeaderFile());

    /**
     * The content root directory.
     */
    File getRootDirectory();

    /**
     * The set of source directories.
     */
    DomainObjectSet<? extends IdeaSourceDirectory> getSourceDirectories();

    /**
     * The set of test source directories.
     */
    DomainObjectSet<? extends IdeaSourceDirectory> getTestDirectories();

    /**
     * The set of resource directories.

     *
     * @return The source directories. Returns an empty set if the project has no source directories.
     * @since 1.0-milestone-3
     */
    DomainObjectSet<? extends EclipseSourceDirectory> getSourceDirectories();

    /**
     * Returns the linked resources for this project.
     *
     * @return The linked resources.
     * @since 1.0-milestone-4
     */

    }

    public DefaultIdeaContentRoot setRootDirectory(File rootDirectory) {
        this.rootDirectory = rootDirectory;
        return this;
    }

    public Set<DefaultIdeaSourceDirectory> getSourceDirectories() {
        return sourceDirectories;
    }

    public DefaultIdeaContentRoot setSourceDirectories(Set<DefaultIdeaSourceDirectory> sourceDirectories) {
        this.sourceDirectories = sourceDirectories;

    }

    @Override
    public NativePlatform getTargetPlatform() {
        return targetPlatform;
    }

    @Override
    public FileCollection getHeaderDirs() {
        return library.getHeaders().getSourceDirectories();
    }

    protected FileCollection createFileCollection(File file, String fileCollectionDisplayName, String fileDescription) {

        langSrcDir.srcDir(project.getLayout().getProjectDirectory().dir("src/" + sourceSet.getName() + "/" + name));
        Provider<File> srcDirProvider = project.getProviders().provider(() -> langSrcDir.getSourceDirectories().getSingleFile());

        TaskProvider<? extends AbstractCompile> compileTask = taskBuilder.apply(
            project.getObjects().directoryProperty().fileProvider(srcDirProvider)
        );

        task.getToolChain().set(binary.getToolChain());
        task.getTargetPlatform().set(binary.getTargetPlatform());

        task.includes(sourceSet.getExportedHeaders().getSourceDirectories());

        FileCollectionFactory fileCollectionFactory = ((ProjectInternal) task.getProject()).getServices().get(FileCollectionFactory.class);
        task.includes(fileCollectionFactory.create(new MinimalFileSet() {