{stdenv, fetchFromGitHub, jdk6, ant_1_7}: stdenv.mkDerivation rec {
    pname = "commons-lang";
    version = "1.0";
    outJar = "commons-lang-1.0.jar";

    src = fetchFromGitHub {
        owner = "apache";
        repo = pname;
        rev = "LANG_1_0";
        hash = "sha256-qE7t4xHM/4zUXIv/hWp6yPw+9SmcG7gbzYH2YxrkJIY=";
    };

    patches = [./commons-lang.patch];

    nativeBuildInputs = [jdk6 ant_1_7];

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

    buildPhase = ''
        ln -s /build/source/LICENSE.txt /build/LICENSE
        ant dist
    '';

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