Objects.requireNonNull(output, "output cannot be null");
        Objects.requireNonNull(settings, "settings cannot be null");

        output.getParentFile().mkdirs();

        write(Files.newOutputStream(output.toPath()), options, settings);
    }

    @Override
    public void write(Writer output, Map<String, Object> options, Settings settings) throws IOException {

    private void write(Path metadataPath, Metadata metadata) throws RepositoryException {
        try {
            Files.createDirectories(metadataPath.getParent());
            try (OutputStream output = Files.newOutputStream(metadataPath)) {
                new MetadataStaxWriter().write(output, metadata.getDelegate());
            }
        } catch (IOException | XMLStreamException e) {

        }

        return sequenceOf(directory)
    }

    private
    fun aJar(sourceFiles: Sequence<Path>): Sequence<Path> {
        val outputPath = projectDir.resolve("mylib.jar")
        Files.newOutputStream(outputPath).use { outputStream ->
            JarOutputStream(outputStream).use { jarStream ->
                sourceFiles.forEach { dir ->
                    check(Files.isDirectory(dir)) { "Must be a directory" }

            metadata.setVersion(null);
        }

        if (changed || !metadataFile.exists()) {
            metadataFile.getParentFile().mkdirs();
            try (OutputStream output = Files.newOutputStream(metadataFile.toPath())) {
                MetadataStaxWriter mappingWriter = new MetadataStaxWriter();
                mappingWriter.write(output, metadata.getDelegate());
            }
        } else {

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-badword-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    badWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);

            logger.debug("Fess JSON import started: fileName={}", fileName);
        }

        try (final InputStream in = new FileInputStream(tempFile); final OutputStream out = Files.newOutputStream(getFessJsonPath())) {
            CopyUtil.copy(in, out);

            if (logger.isInfoEnabled()) {
                logger.info("Fess JSON import completed successfully: fileName={}", fileName);
            }

            return;
        }

        Path handleFile = stateDirectory.resolve(info.getCreateGuid().toString() + ".handle");
        try (ObjectOutputStream oos = new ObjectOutputStream(Files.newOutputStream(handleFile, StandardOpenOption.CREATE,
                StandardOpenOption.WRITE, StandardOpenOption.TRUNCATE_EXISTING))) {
            oos.writeObject(info);
            log.debug("Persisted handle: {}", info.getPath());

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-badword-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    badWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-elevate-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    elevateWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-elevate-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    elevateWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);