/**
  * Create an InputStreamReader that uses the named character encoding.
  *
  * @param is An InputStream
  * @param enc The name of a supported
  * @exception UnsupportedEncodingException If the named encoding is not supported
  */
 public InputStreamReader(InputStream is, String enc) throws UnsupportedEncodingException {
   in = Helper.getStreamReader(is, enc);
 }
 /**
  * Create an InputStreamReader that uses the default character encoding.
  *
  * @param is An InputStream
  */
 public InputStreamReader(InputStream is) {
   in = Helper.getStreamReader(is);
 }