anchor.diff:      sha256 = "0swyysbyfmv068x8q1c5jqpwk5zb4xahg17aypx5rwb660f8fpbm";
     };
   
  -  buildInputs = [ unzip ant gcj ];
  +  buildInputs = [ unzip ant jdk ];
   
     unpackPhase = ''
       mkdir "${name}"
  
positive.code: 
      # http://www.eclipse.org/legal/epl-v10.html (free software, copyleft)
      license = "EPLv1.0";
    };
  }
  
negative.code: { stdenv, fetchurl, unzip, ant, jdk }:
  
  let
    version = "3.7.2";
    date    = "201202080800";
  in
  
  stdenv.mkDerivation rec {
  