Java Utililty Methods Uncompress Byte Array

try (InputStream is = new GZIPInputStream(new ByteArrayInputStream(compressed));
        ByteArrayOutputStream out = new ByteArrayOutputStream()) {
    byte[] buffer = new byte[1024];
    while (true) {
        int read = is.read(buffer, 0, buffer.length);
        if (read == -1) {
            break;
        out.write(buffer, 0, read);
    return out.toByteArray();

StringBuffer retval = new StringBuffer();
Inflater infl = new Inflater();
infl.setInput(b);
int countUncompressed;
byte[] buf = new byte[256];
while (true) {
    try {
        countUncompressed = infl.inflate(buf);
...

try {
    Inflater inf = new Inflater();
    inf.setInput(input, 0, input.length);
    byte[] out = new byte[input.length * 2];
    int len = inf.inflate(out);
    inf.end();
    byte[] output = new byte[len];
    System.arraycopy(out, 0, output, 0, len);
...

StringBuffer unzippedData = new StringBuffer();
ByteArrayInputStream byteStream = new ByteArrayInputStream(zipData);
ZipInputStream zipIn = new ZipInputStream(byteStream);
BufferedReader in = new BufferedReader(new InputStreamReader(zipIn));
ZipEntry entry = zipIn.getNextEntry();
String line = in.readLine();
while (line != null) {
    unzippedData.append(line + "\n");
...

ByteArrayInputStream bais = new ByteArrayInputStream(blob);
GZIPInputStream gs = new GZIPInputStream(bais);
ObjectInputStream ois = new ObjectInputStream(gs);
Object obj = ois.readObject();
ois.close();
bais.close();
return obj;

if (bytes == null)
    return null;
if (bytes.length == 0)
    return new byte[0];
Inflater inflater = new Inflater();
inflater.setInput(bytes);
ByteArrayOutputStream out = new ByteArrayOutputStream(bytes.length);
byte[] buffer = new byte[1024];
...

try {
    ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
    ZipInputStream zis = new ZipInputStream(bis);
    zis.getNextEntry();
    return toByteArray(zis, -1);
} catch (IOException e) {
    throw new IllegalStateException(e);

try {
    GZIPInputStream gis = new GZIPInputStream(new ByteArrayInputStream(bytes));
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buff = new byte[512];
    int read = gis.read(buff);
    while (read > 0) {
        bos.write(buff, 0, read);
        read = gis.read(buff);
...

if (bytes == null) {
    return null;
} else if (bytes.length == 0) {
    return "";
try (ByteArrayInputStream input = new ByteArrayInputStream(bytes);
        GZIPInputStream gin = new GZIPInputStream(input);
        ByteArrayOutputStream out = new ByteArrayOutputStream();) {
...

ByteArrayOutputStream out = null;
ByteArrayInputStream in = null;
ZipInputStream zin = null;
String decompressed = null;
try {
    out = new ByteArrayOutputStream();
    in = new ByteArrayInputStream(compressedByte);
    zin = new ZipInputStream(in);
...