{stdenv, fetchFromGitHub, jdk6, ant_1_7}: stdenv.mkDerivation rec {
    pname = "classworlds";
    version = "1.1-SNAPSHOT";
    outJar = "classworlds.jar";

    src = fetchFromGitHub {
        owner = "codehaus-plexus";
        repo = "plexus-classworlds";
        rev = "a29f7a01ce35b75a56847aced5cb3b9977249634";
        hash = "sha256-mMwVlnsey/AyKAS/nF1vh2fjvzwje8SiSPhOmHP55Bg=";
    };

    patches = [./classworlds.patch];

    nativeBuildInputs = [jdk6 ant_1_7];

    env = {
        JAVA_HOME="${jdk6}";
    };

    buildPhase = ''
        ant dist
    '';

    installPhase = ''
        mkdir $out
        cp -r ./dist/* $out/
    '';
}