code: public static void copyBytes(InputStream in, OutputStream out, int buffSize,
        boolean close) 
      throws IOException {
      copyBytes(in, out, buffSize, close, null);
    }
docs: Copies from one stream to another.
  @param in InputStrem to read from
  @param out OutputStream to write to
  @param buffSize the size of the buffer
  @param close whether or not close the InputStream and
  OutputStream at the end. The streams are closed in the finally clause.