}

    @Test
    public void testPropertiesInterpolation() throws Exception {
        FileSystem fs = Jimfs.newFileSystem(Configuration.windows());

        Path mavenHome = fs.getPath("C:\\maven");
        Files.createDirectories(mavenHome);
        Path mavenConf = mavenHome.resolve("conf");
        Files.createDirectories(mavenConf);

            } else if (file.getPath().startsWith(File.separator)) {
                // drive-relative Windows path, don't align with project directory but with drive root
                file = file.getAbsoluteFile();
            } else {
                // an ordinary relative path, align with project directory
                file = new File(new File(basedir, file.getPath()).toURI().normalize()).getAbsoluteFile();
            }

        return MAVEN_METADATA_XML;
    }

    @Deprecated
    @Override
    public File getFile() {
        return path != null ? path.toFile() : null;
    }

    @Override
    public Path getPath() {
        return path;
    }

    @Override
    public void merge(File existing, File result) throws RepositoryException {

        File pom4 = new File(pom3.getParentFile(), "p4/pom.xml");
        File pom5 = new File(pom4.getParentFile(), "p5/pom.xml");

        System.out.println("Location of project-4's POM: " + pom4.getPath());

        // load everything...
        MavenProject project0 = getProject(pom0);
        MavenProject project1 = getProject(pom1);
        MavenProject project2 = getProject(pom2);

    @Override
    public File getFile() {
        return null;
    }

    @Override
    public MetadataBridge setFile(File file) {
        return this;
    }

    @Override
    public Path getPath() {
        return null;
    }

    @Override
    public Nature getNature() {
        if (metadata instanceof RepositoryMetadata repositoryMetadata) {

                    && artifact.getClassifier().isEmpty()) {
                try {
                    Path tmpPom = Files.createTempFile("pom-inliner-", ".xml");
                    String originalPom = Files.readString(artifact.getPath());
                    String interpolatedPom = interpolator.interpolate(
                            originalPom,
                            property -> {
                                if (needsInlining.contains(property)) {

     *
     * @return the underlying {@code Path} if this source is file-backed,
     *         or {@code null} if this source has no associated file
     */
    @Nullable
    Path getPath();

    /**
     * Creates a new input stream to read the source contents.
     * Each call creates a fresh stream starting from the beginning.
     * The caller is responsible for closing the returned stream.
     *

            mavenConf = fileSystem.getPath(systemProperties.getProperty(MAVEN_INSTALLATION_CONF));
        } else if (systemProperties.getProperty("maven.conf") != null) {
            mavenConf = fileSystem.getPath(systemProperties.getProperty("maven.conf"));
        } else if (systemProperties.getProperty(MAVEN_HOME) != null) {
            mavenConf = fileSystem.getPath(systemProperties.getProperty(MAVEN_HOME), "conf");

        // Other required methods with minimal implementations
        @Override
        public ModelSource getSource() {
            return new ModelSource() {
                @Override
                public Path getPath() {
                    return Paths.get("test-pom.xml");
                }

                @Override
                public String getLocation() {
                    return "test-pom.xml";
                }

        return type;
    }

    /** @return the classifier */
    public String getClassifier() {
        return this.classifier;
    }

    /** @return the path */
    public String getPath() {
        return this.path;
    }

    public List<ArtifactRepository> getRemoteRepositories() {
        return remoteRepositories;
    }

    public String getOriginalMessage() {