Java Utililty Methods Zip File List

boolean test = true;
try {
    BufferedInputStream origin = null;
    FileOutputStream dest = new FileOutputStream(outname);
    ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest));
    byte data[] = new byte[BUFFER];
    for (int i = 0; i < filename.length; i++) {
        File file = new File(filename[i]);
...

byte[] buf = new byte[1024];
try {
    ZipOutputStream zout = new ZipOutputStream(new FileOutputStream(sZip));
    for (String s : sFl) {
        FileInputStream in = new FileInputStream(s);
        ZipEntry ze = new ZipEntry(s);
        zout.putNextEntry(ze);
        int len;
...

try {
    zipFile = directory + File.separatorChar + zipFile;
    byte[] buffer = new byte[65535];
    int progress = 0;
    FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
    ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
    for (int i = 0; i < sourceFiles.length; i++) {
        sourceFiles[i] = directory + File.separatorChar + sourceFiles[i];
...

if (srcFiles.length == 0) {
    return;
File fileDst = new File(dstFile);
File parentDir = fileDst.getParentFile();
if (!parentDir.exists()) {
    parentDir.mkdirs();
if (fileDst.exists()) {
    fileDst.delete();
fileDst.createNewFile();
ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(fileDst));
zos.setMethod(ZipOutputStream.DEFLATED);
if (comment != null) {
    zos.setComment(comment);
DataOutputStream dos = new DataOutputStream(zos);
for (int i = 0; i < srcFiles.length; i++) {
    String entryPath = srcFiles[i];
    zos.putNextEntry(new ZipEntry(entryPath));
    File fileEntry = new File(entryPath);
    FileInputStream fis = new FileInputStream(fileEntry);
    byte[] buff = new byte[8192];
    int len = 0;
    while (true) {
        len = fis.read(buff);
        if (len == -1 || len == 0) {
            break;
        dos.write(buff, 0, len);
    zos.closeEntry();
    fis.close();
dos.close();
zos.close();

GZIP the specified list of files.

for (File source : files) {
    File dest = new File(destinationDir, source.getName() + ".gz");
    zipFile(source, dest);

if (files.size() > 0) {
    ZipOutputStream zip = null;
    FileOutputStream fileWriter = null;
    fileWriter = new FileOutputStream(destZipFile);
    zip = new ZipOutputStream(fileWriter);
    for (File f : files) {
        addFileToZip("", f.getAbsolutePath(), zip);
    zip.flush();
    zip.close();

ZipOutputStream zipout = new ZipOutputStream(
        new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));
for (File resFile : resFileList) {
    zipFile(resFile, zipout, "");
zipout.close();

String fileName = pathName + file.getName();
if (file.isDirectory()) {
    fileName = fileName + "/";
    jos.putNextEntry(new JarEntry(fileName));
    String fileNames[] = file.list();
    if (fileNames != null) {
        for (int i = 0; i < fileNames.length; i++) {
            zipFiles(new File(file, fileNames[i]), jos, fileName);
...

try {
    FileOutputStream fos = new FileOutputStream(output);
    ZipOutputStream zos = new ZipOutputStream(fos);
    for (File file : fileList) {
        if (file.isFile()) {
            addFileToZip(root, file, zos);
    zos.close();
    fos.close();
} catch (IOException e) {
    throw new RuntimeException("Unable to write zip file.", e);

if (currDir.isDirectory()) {
    final File[] files = currDir.listFiles();
    for (int i = 0; i < files.length; i++) {
        zipFiles(rootDir, files[i], zos);
} else {
    final String strAbsPath = currDir.getPath();
    final String strZipEntryName = strAbsPath.substring(rootDir.getPath().length() + 1,
...