Java Utililty Methods Byte Array Uncompress

ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
byte[] data = new byte[16384];
int numberOfBytesRead;
try (GZIPInputStream zippedInputStream = new GZIPInputStream(new ByteArrayInputStream(bytesToUncompress))) {
    while ((numberOfBytesRead = zippedInputStream.read(data, 0, data.length)) != -1) {
        outputStream.write(data, 0, numberOfBytesRead);
    outputStream.flush();
...

ByteArrayOutputStream out = new ByteArrayOutputStream();
try (BufferedInputStream in = new BufferedInputStream(new GZIPInputStream(new ByteArrayInputStream(b)))) {
    int val;
    while ((val = in.read()) >= 0) {
        out.write(val);
return out.toByteArray();
...

ByteArrayInputStream bais = new ByteArrayInputStream(compressed);
GZIPInputStream gzis = new GZIPInputStream(bais);
ObjectInputStream ois = new ObjectInputStream(gzis);
return ois.readObject();

if (data == null || data.length == 0) {
    return null;
} else {
    ByteArrayInputStream bais = new ByteArrayInputStream(data);
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
    GZIPInputStream is = new GZIPInputStream(bais);
    byte[] tmp = new byte[256];
    while (true) {
...

if (b == null || b.length == 0) {
    return null;
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayInputStream in = new ByteArrayInputStream(b);
try {
    GZIPInputStream gunzip = new GZIPInputStream(in);
    byte[] buffer = new byte[256];
...