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public class TestZIP {
    public static void main(String[] args) {
        FileUtil.createZipArchive("./src/resources/testSrc");
    }
}

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public class FileUtil {
    final static int BUFFER = 2048;
    private static Logger log = Logger.getLogger(String.valueOf(FileUtil.class));
    public static boolean createZipArchive(String srcFolder) {
        try {
            BufferedInputStream origin = null;
            FileOutputStream dest = new FileOutputStream(new File(srcFolder + ".zip"));
            ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest));
            byte data[] = new byte[BUFFER];
            File subDir = new File(srcFolder);
            String subdirList[] = subDir.list();
            for (String sd : subdirList) {
                // get a list of files from current directory
                File f = new File(srcFolder + "/" + sd);
                if (f.isDirectory()) {
                    String files[] = f.list();
                    for (int i = 0; i < files.length; i++) {
                        System.out.println("Adding: " + files[i]);
                        FileInputStream fi = new FileInputStream(srcFolder + "/" + sd + "/" + files[i]);
                        origin = new BufferedInputStream(fi, BUFFER);
                        ZipEntry entry = new ZipEntry(sd + "/" + files[i]);
                        out.putNextEntry(entry);
                        int count;
                        while ((count = origin.read(data, 0, BUFFER)) != -1) {
                            out.write(data, 0, count);
                            out.flush();
                        }
                    }
                } else {
                    //it is just a file
                    FileInputStream fi = new FileInputStream(f);
                    origin = new BufferedInputStream(fi, BUFFER);
                    ZipEntry entry = new ZipEntry(sd);
                    out.putNextEntry(entry);
                    int count;
                    while ((count = origin.read(data, 0, BUFFER)) != -1) {
                        out.write(data, 0, count);
                        out.flush();
                    }
                }
            }
            origin.close();
            out.flush();
            out.close();
        } catch (Exception e) {
            log.info("createZipArchive threw exception: " + e.getMessage());
            return false;
        }
        return true;
    }
}