assertEquals("url cannot be null", e.getMessage());
    }

    @Test
    void testGetInputStream() throws Exception {
        URL txtFile = new File("target/test-classes/source.txt").toURI().toURL();
        UrlSource source = new UrlSource(txtFile);
        try (InputStream is = source.getInputStream();
                Scanner scanner = new Scanner(is)) {

                            if ("baseUri".equals(expression)) {
                                return projectDir.toAbsolutePath().toUri().toASCIIString();
                            } else if (expression.startsWith("baseUri.")) {
                                URI baseUri = projectDir.toAbsolutePath().toUri();
                                return new ObjectBasedValueSource(baseUri)

        if (relatedPom != null) {
            return new FileModelSource(relatedPom.normalize());
        }

        return null;
    }

    @Override
    public URI getLocationURI() {
        return getPath().toUri();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

                result = path.getAbsoluteFile();
            } else {
                // an ordinary relative path, align with base dir
                result = new File(new File(basedir, path.getPath()).toURI().normalize()).getAbsoluteFile();
            }
        }

        return result;
    }

        return new RemoteRepository.Builder(
                        "repo",
                        "default",
                        getTestFile("target/test-classes/repo").toURI().toURL().toString())
                .build();
    }

                "file://"
                        + new File(System.getProperty("basedir", "."), "src/test/remote-repo")
                                .getAbsoluteFile()
                                .toURI()
                                .getPath(),
                new DefaultRepositoryLayout(),
                new ArtifactRepositoryPolicy(),
                new ArtifactRepositoryPolicy());
    }

    @Override

        policy.setUpdatePolicy("always");

        Repository repository = new Repository();
        repository.setId(RepositorySystem.DEFAULT_REMOTE_REPO_ID);
        repository.setUrl("file://" + repoDir.toURI().getPath());
        repository.setReleases(policy);
        repository.setSnapshots(policy);

        return Arrays.asList(repositorySystem.buildArtifactRepository(repository));
    }

            return rel != null ? new SourceWrapper(rel) : null;
        }

        @Override
        public URI getLocationURI() {
            Path path = source.getPath();
            return path != null ? path.toUri() : URI.create(source.getLocation());
        }
    }

) {

    fun analyze(jarFile: File, classesDir: File, manifestFile: File, buildReceipt: File): ClassGraph {
        val classGraph = classGraph()

        val jarUri = URI.create("jar:${jarFile.toPath().toUri()}")
        FileSystems.newFileSystem(jarUri, emptyMap<String, Any>()).use { jarFileSystem ->
            jarFileSystem.rootDirectories.forEach {

        }

        // relative path, e.g. "sub", "../sub" or "."
        else if (reactorDirectory != null) {
            File selectedProject =
                    new File(new File(reactorDirectory, selector).toURI().normalize());

            if (selectedProject.isFile()) {
                return selectedProject.equals(project.getFile());
            } else if (selectedProject.isDirectory()) {