The `authenticated` attribute is not always present in the `project-info.json` produced by maven2nix[0] We therefore check for its presence, and default it to false. [0]: https://github.com/NixOS/mvn2nix-maven-plugin/issues/5#issuecomment-311846950
The `authenticated` attribute is not always present in the `project-info.json` produced by maven2nix[0] We therefore check for its presence, and default it to false. [0]: https://github.com/NixOS/mvn2nix-maven-plugin/issues/5#issuecomment-311846950