code: public static BufferedReader asReader(InputStream is, Charset charset) {
  		try {
  			return new BufferedReader(new InputStreamReader(is, charset.toString()));
  		} catch (Exception e) {
  			e.printStackTrace();
  		}
  		
  		return null;
  	}
docs: Convert {@link InputStream} to {@link BufferedReader}
  
  @param is
  @return