You can inline native type-safe JSON directly in Java with the manifold project.

    /*[Dude.json/] {
      "Name": "Scott",
      "Age": 100,
      "Address": {
        "Street": "345 Syracuse Way",
        "City": "Atlantis"
      }
    }
    */

    Dude dude = Dude.fromSource();
            
    out.println(dude.getName());
    out.println(dude.getAge());
    out.println(dude.getAddress().getCity());

https://github.com/manifold-systems/manifold