Java Utililty Methods Byte Array Encode

ByteArrayOutputStream baos = new ByteArrayOutputStream();
Deflater deflater = new Deflater(Deflater.DEFLATED, true);
DeflaterOutputStream deflaterStream = new DeflaterOutputStream(baos, deflater);
deflaterStream.write(message);
deflaterStream.finish();
return baos.toByteArray();

StringBuilder hexText = new StringBuilder();
String initialHex = null;
int initHexLength = 0;
for (int i = 0; i < rawData.length; i++) {
    int positiveValue = rawData[i] & 0x000000FF;
    initialHex = Integer.toHexString(positiveValue);
    initHexLength = initialHex.length();
    while (initHexLength++ < 2) {
...

byte[] encoded = encodeBytesToBytes(source, source.length);
try {
    return new String(encoded, "US-ASCII");
} catch (java.io.UnsupportedEncodingException uue) {
    return new String(encoded);

for (File f : files) {
    try {
        if (f.isDirectory()) {
            encode(prefix, buf, zos, f.listFiles());
        } else {
            ZipEntry entry = new ZipEntry(f.getPath().replace(prefix, "").replace('\\', '/'));
            zos.putNextEntry(entry);
            try (InputStream is = new BufferedInputStream(new FileInputStream(f))) {
...

try {
    return new String(bytes, UTF_8);
} catch (UnsupportedEncodingException e) {
    throw new RuntimeException(e);

os.write(BIT_STRING);
writeLength(in.length + 1, os);
os.write(0);
os.write(in);

if (bytes == null) {
    out.writeInt(-1);
    return;
out.writeInt(bytes.length);
out.write(bytes);

byte[] encoded = encodeBytesToBytes(source, off, len);
try {
    return new String(encoded, PREFERRED_ENCODING);
} catch (UnsupportedEncodingException uee) {
    return new String(encoded);

byte[] encBytes;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
for (byte[] bytes : bytesList) {
    bos.write((byte) ((bytes.length >> 8) & 0xFF));
    bos.write((byte) (bytes.length & 0xFF));
    for (int j = 0; j < bytes.length; j++) {
        bos.write(bytes[j] & 0xFF);
    bos.write((byte) 0);
encBytes = bos.toByteArray();
return encBytes;

Matcher m = characterEncodingPattern.matcher(new String(data, "ISO-8859-1"));
if (m.find()) {
    String foundCharset = m.group(1);
    if (foundCharset.toLowerCase().equals("iso-8859-1")) {
        logger.info("ISO-8859-1 found in meta tag, usind windows-1252 instead");
        foundCharset = DEFAULT_CHARACTER_ENCODING;
    return new String(data, foundCharset);
...