static String readLine (Reader
reader) throws IOException {
  StringBuffer buf = new StringBuffer ();
  while (true) {
    int c = reader.read ();
    if (c == -1) {
      if (buf.length () == 0) return null;
      break;
    }
    if (c == '
') break;
    if (c != '
') buf.append ((char) c);
  }
  return buf.toString ();
}

Use

new InputStreamReader
(new ByteArrayInputStream (s.getBytes ()));

new StringReader (s);

Use

  ByteArrayOutputStream bos = new
ByteArrayOutputStream ();
  OutputStreamWriter sw = new
OutputStreamWriter (bos);
  // ... write to sw
  String s = new String (bos.getByteArray
());

StringWriter sw = new StringWriter ();
// ... write to sw
String s = sw.toString ();

Workaround: