Java Utililty Methods Deflate Byte Array

InputStream in = new InflaterInputStream(new ByteArrayInputStream(array));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
shovelInToOut(in, bos);
in.close();
System.out.println(bos.toString("UTF-8"));

try {
    ByteArrayOutputStream baos = new ByteArrayOutputStream(buf.length);
    DeflaterOutputStream dos = new DeflaterOutputStream(baos);
    dos.write(buf, 0, buf.length);
    dos.close();
    return baos.toByteArray();
} catch (IOException e) {
    return null;
...

ByteArrayOutputStream bos = new ByteArrayOutputStream();
DeflaterOutputStream dos = new DeflaterOutputStream(bos, new Deflater(Deflater.DEFAULT_COMPRESSION, true));
dos.write(bytes);
dos.close();
return bos.toByteArray();

Deflater deflater = new Deflater(Deflater.DEFAULT_COMPRESSION, true);
deflater.setInput(data);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
deflater.finish();
byte[] buffer = new byte[1024];
while (!deflater.finished()) {
    int count = deflater.deflate(buffer);
    outputStream.write(buffer, 0, count);
...

try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
    Deflater deflater = new Deflater();
    try {
        deflater.setInput(data);
        deflater.finish();
        byte[] buffer = new byte[1024];
        while (!deflater.finished()) {
            int count = deflater.deflate(buffer);
...

Deflater compresser = new Deflater();
compresser.setLevel(Deflater.BEST_COMPRESSION);
compresser.setInput(data);
compresser.finish();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] bytes = new byte[1024];
compresser.deflate(bytes);
while (!compresser.finished()) {
...

Deflater deflater = new Deflater(8, true);
if (dictionary != null) {
    deflater.setDictionary(dictionary);
deflater.setInput(data);
deflater.finish();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
byte[] buffer = new byte[256];
...

ByteArrayOutputStream bos = null;
if (in != null) {
    ByteArrayInputStream bis = new ByteArrayInputStream(in);
    bos = new ByteArrayOutputStream();
    InflaterInputStream gis;
    try {
        gis = new InflaterInputStream(bis);
        byte[] buf = new byte[8192];
...

ByteArrayInputStream bis = new ByteArrayInputStream(input);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DeflaterOutputStream dos = new DeflaterOutputStream(bos);
byte[] buffer = new byte[BUF_LEN];
int bytesRead = bis.read(buffer);
while (bytesRead > 0) {
    dos.write(buffer, 0, bytesRead);
    bytesRead = bis.read(buffer);
...

final ByteArrayOutputStream vByteArrayStream = new ByteArrayOutputStream(pInput.length);
final OutputStream vDeflaterStream = new DeflaterOutputStream(vByteArrayStream);
vDeflaterStream.write(pInput);
vDeflaterStream.close();
final byte[] vCompressedBytes = vByteArrayStream.toByteArray();
return vCompressedBytes;