Java Utililty Methods Byte Array Decode

ByteArrayInputStream bais = new ByteArrayInputStream(b);
InputStream b64is = MimeUtility.decode(bais, "base64");
byte[] tmp = new byte[b.length];
int n = b64is.read(tmp);
byte[] res = new byte[n];
System.arraycopy(tmp, 0, res, 0, n);
return res;

try {
    return new String(bytes, "UTF-8"); 
} catch (UnsupportedEncodingException e) {
    return new String(bytes);

if (bytes == null) {
    return null;
T t = null;
Exception thrown = null;
try {
    ObjectInputStream oin = new ObjectInputStream(new ByteArrayInputStream(bytes));
    t = (T) oin.readObject();
...

ByteArrayInputStream in = new ByteArrayInputStream(bytes);
ByteArrayOutputStream out = new ByteArrayOutputStream();
decode(in, out);
return out.toByteArray();

ByteArrayInputStream bais = new ByteArrayInputStream(msgToDecode);
return new InflaterInputStream(bais, new Inflater(true));

byte[] decoded = null;
decoded = decode(source, 0, source.length, NO_OPTIONS);
return decoded;

int len34 = len * 3 / 4;
byte[] outBuff = new byte[len34]; 
int outBuffPosn = 0;
byte[] b4 = new byte[4];
int b4Posn = 0;
int i = 0;
byte sbiCrop = 0;
byte sbiDecode = 0;
...

return decode(src, 0, src.length, charset);

if (null == wrap)
    return null;
byte[] prim = new byte[wrap.length];
for (int i = 0; i < wrap.length; i++) {
    prim[i] = wrap[i];
ByteArrayInputStream inBytes = new ByteArrayInputStream(prim);
ObjectInputStream inObject;
...

int len34 = len * 3 / 4;
byte[] outBuff = new byte[len34]; 
int outBuffPosn = 0;
byte[] b4 = new byte[4];
int b4Posn = 0;
int i = 0;
byte sbiCrop = 0;
byte sbiDecode = 0;
...