how to get a real null value instead of a JSONObject.NULL value when parsing JSON in grails

Question

I\'m trying to parse some JSON in Grails using the grails.converters.JSON library. I have a field which will contain either a string, or a null value. When I parse the JSON an

Answer 1

You may find this more useful and natural

    JSONObject.NULL.equals(jsonObj.get("key_name"))