Compress directory into a zipfile with Commons IO

The following method(s) seem to successfully compress a directory recursively:

public static void compressZipfile(String sourceDir, String outputFile) throws IOException, FileNotFoundException {
    ZipOutputStream zipFile = new ZipOutputStream(new FileOutputStream(outputFile));
    compressDirectoryToZipfile(sourceDir, sourceDir, zipFile);
    IOUtils.closeQuietly(zipFile);
}

private static void compressDirectoryToZipfile(String rootDir, String sourceDir, ZipOutputStream out) throws IOException, FileNotFoundException {
    for (File file : new File(sourceDir).listFiles()) {
        if (file.isDirectory()) {
            compressDirectoryToZipfile(rootDir, sourceDir + File.separator + file.getName(), out);
        } else {
            ZipEntry entry = new ZipEntry(sourceDir.replace(rootDir, "") + file.getName());
            out.putNextEntry(entry);

            FileInputStream in = new FileInputStream(sourceDir + file.getName());
            IOUtils.copy(in, out);
            IOUtils.closeQuietly(in);
        }
    }
}

As seen in my compression code snippet, I'm using IOUtils.copy() to handle stream data transfer.

I fix above error and it works perfect.

    public static void compressZipfile(String sourceDir, String outputFile) throws IOException, FileNotFoundException {
    ZipOutputStream zipFile = new ZipOutputStream(new FileOutputStream(outputFile));
    Path srcPath = Paths.get(sourceDir);
    compressDirectoryToZipfile(srcPath.getParent().toString(), srcPath.getFileName().toString(), zipFile);
    IOUtils.closeQuietly(zipFile);
}

private static void compressDirectoryToZipfile(String rootDir, String sourceDir, ZipOutputStream out) throws IOException, FileNotFoundException {
    String dir = Paths.get(rootDir, sourceDir).toString();
    for (File file : new File(dir).listFiles()) {
        if (file.isDirectory()) {
            compressDirectoryToZipfile(rootDir, Paths.get(sourceDir,file.getName()).toString(), out);
        } else {
            ZipEntry entry = new ZipEntry(Paths.get(sourceDir,file.getName()).toString());
            out.putNextEntry(entry);

            FileInputStream in = new FileInputStream(Paths.get(rootDir, sourceDir, file.getName()).toString());
            IOUtils.copy(in, out);
            IOUtils.closeQuietly(in);
        }
    }
}