To support the JVM we'll need to add the openjdk. Having a look at it I think it is doable. Only problem is that the java compiler needs to be bootstrapped with itself.
In Nix they create a binary blob to bootstrap: let # !!! These should be on nixos.org src = if glibc.system == "x86_64-linux" then fetchurl { url = http://tarballs.nixos.org/openjdk-bootstrap-x86_64-linux-2012-08-2 4.tar.xz; sha256 = "0gla9dxrfq2w1hvgsnn8jg8a60k27im6z43a6iidi0qmwa0wah32"; } else if glibc.system == "i686-linux" then fetchurl { url = http://tarballs.nixos.org/openjdk-bootstrap-i686-linux-2012-08-24. tar.xz; sha256 = "184wq212bycwbbq4ix8cc6jwjxkrqw9b01zb86q95kqpa8zy5206"; } else throw "No bootstrap for system"; in How do we go about this one? Pj.