Java Utililty Methods Gunzip Byte Array

try {
 if (src == null)
 return default_value;
 ByteArrayOutputStream out = new ByteArrayOutputStream();
 GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(src));
 IOUtils.copy(in, out);
 in.close();
 out.close();
...

ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
BufferedInputStream bufis = new BufferedInputStream(new GZIPInputStream(bis));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len;
while ((len = bufis.read(buffer)) >= 0) {
 bos.write(buffer, 0, len);
String retval = bos.toString();
bis.close();
bufis.close();
bos.close();
return retval;

try (InputStream is = new GZIPInputStream(new ByteArrayInputStream(bytes))) {
 try (ByteArrayOutputStream os = new ByteArrayOutputStream()) {
 byte[] buf = new byte[4096];
 int len;
 while ((len = is.read(buf, 0, buf.length)) != -1) {
 os.write(buf, 0, len);
 return os.toByteArray();
...

if (bytes == null)
 return null;
if (bytes.length == 0)
 return new byte[0];
ByteArrayInputStream bin = new ByteArrayInputStream(bytes);
byte[] result = null;
try (GZIPInputStream gzip = new GZIPInputStream(bin);
 ByteArrayOutputStream bout = new ByteArrayOutputStream()) {
...

ByteArrayOutputStream out = new ByteArrayOutputStream();
copy(new GZIPInputStream(new ByteArrayInputStream(contentBytes)), out);
byte[] result = out.toByteArray();
out.close();
return result;

InputStream in = new GZIPInputStream(new ByteArrayInputStream(data));
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteStreams.copy(in, out);
return out.toByteArray();

ByteArrayOutputStream baos = new ByteArrayOutputStream(data.length * 10);
try (InputStream in = new GZIPInputStream(new ByteArrayInputStream(data))) {
 byte[] buffer = new byte[4096];
 int length;
 while ((length = in.read(buffer)) > 0) {
 baos.write(buffer, 0, length);
return baos.toByteArray();

ByteArrayOutputStream byteOutput = new ByteArrayOutputStream(10240);
GZIPInputStream input = null;
try {
 input = new GZIPInputStream(new ByteArrayInputStream(data));
 byte[] buffer = new byte[1024];
 int n = 0;
 for (;;) {
 n = input.read(buffer);
...

GZIPInputStream gis = new GZIPInputStream(new ByteArrayInputStream(in));
BufferedReader bf = new BufferedReader(new InputStreamReader(gis, "UTF-8"));
String outStr = "";
String line;
while ((line = bf.readLine()) != null)
 outStr += line;
return outStr;

if (b == null) {
 return null;
try (final GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(b))) {
 return MAPPER.readValue(in, c);