default.nix for josm development (retarget as needed for different java versions)

josm.default.nix

{
  pkgs ? import <nixpkgs> {}
}:
let
    oraclejdk11 = pkgs.oraclejdk10.overrideAttrs (oldAttrs: {
      src = pkgs.requireFile {
        name = "jdk-11-ea+24_linux-x64_bin.tar.gz";
        url =  "http://jdk.java.net/11/";
        sha256 = "51430792cd9955c7e41792964bede9fe7e4b2aae084986b8575467db75203a3a";
      };
      name = "oraclejdk-11.0.0-ea";
    });
    ant1913 = let
      version = "1.9.13";
    in pkgs.ant.overrideAttrs (oldAttrs: {
      src = pkgs.fetchurl {
        url = "mirror://apache/ant/binaries/apache-ant-${version}-bin.tar.bz2";
        sha256 = "0g67qnikp68zhafr4zpik14m410si63zhi8rz8s5fsgxfyxc4w77";
      };
      name = "ant-${version}";
    });
in {
  josmDevEnv = pkgs.stdenv.mkDerivation {
    name = "josm-dev-env";
    buildInputs = [
      ant1913
      oraclejdk11
      pkgs.rlwrap  # just try using jdb without it
      pkgs.man
      pkgs.xvfb_run
    ];
  };
}