Java Utililty Methods InputStream to String

Reader r = null;
if (encoding == null) {
    r = new InputStreamReader(is);
} else {
    r = new InputStreamReader(is, encoding);
try {
    StringWriter w = new StringWriter();
...

String output = "";
byte[] buffer = new byte[4096];
while (stream.read(buffer) > 0) {
    output = output + new String(buffer);
return output;

try {
    BufferedReader reader = new BufferedReader(new InputStreamReader(stream, charset));
    StringWriter writer = new StringWriter();
    char[] chars = new char[256];
    int count = 0;
    while ((count = reader.read(chars)) > 0) {
        writer.write(chars, 0, count);
    return writer.toString();
} finally {
    if (stream != null) {
        stream.close();

BufferedReader reader = new BufferedReader(new InputStreamReader(is));
String c = "", line;
while ((line = reader.readLine()) != null)
    c += "\n" + line;
return c.substring(1);

ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
    byte[] buffer = new byte[bufferSize];
    int len = stream.read(buffer, 0, bufferSize);
    if (len > 0) {
        output.write(buffer, 0, len);
} finally {
...

try {
    byte buf[] = new byte[is.available()];
    is.read(buf);
    return new String(buf, "UTF-8");
} catch (Exception e) {
    throw new RuntimeException(e);

return new String(getStreamContentAsBytes(is), encoding);

return getStreamContents(is, DEFAULT_ENCODING);

BufferedReader reader = new BufferedReader(new InputStreamReader(in, "utf-8"));
StringBuffer sb = new StringBuffer();
String line = null;
try {
    while ((line = reader.readLine()) != null) {
        sb.append(line + "\n");
} catch (IOException e) {
...

StringBuffer out = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = in.read(b)) != -1;) {
    out.append(new String(b, 0, n));
return out.toString();