private static byte[] bytes(int... vals){
  final byte[] octets=new byte[vals.length];
  for (int i=0; i < vals.length; i++) {
    octets[i]=(byte)vals[i];
  }
  return octets;
}

private static byte [ ] bytes ( int ... vals ) { final byte [ ] octets = new byte [ vals . length ] ; for ( int i = 0 ; i < vals . length ; i ++ ) { octets [ i ] = ( byte ) vals [ i ] ; } return octets ; }
short - hand for array of bytes - - useful for static definitions .
