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

Have a look at: http://grails.1312388.n4.nabble.com/The-groovy-truth-of-JSONObject-Null-td3661040.html

Ian Roberts mentions a nice trick to make a null check possible:

JSONObject.NULL.metaClass.asBoolean = {-> false}