Skip root element while deserializing json

How should I deserialize following JSON to skip root element and parse just the inner part of this JSON. I'd like to avoid creating additional, 3rd class Root, which would include only MapWrapper field.

{
    "root": {
        "language": "en",
        "map": {
            "k1": {
                "name": "n1",
            },
            "k2": {
                "name": "n2",
            }
        }
    }
}

So I'd like to have only these two classes:

class MapWrapper {
    private String language;
    private Map<String, MyMapEntry> map;
}

class MyMapEntry {
    String name;
}