How to remove a Json key. I looked for some examples on the portal itself, but none solved what I need.

i need to eliminate a json property, is it possible to do? It is like?

public JsonObject getData() {               
        JsonObject jsonObj = Json.createObjectBuilder()
                .add("instanceType", "XXXXX")
            .build();       
        return jsonObj;
    }

the json output is like this:

{
    "instanceType": {
        "chars": "XXXXX",
        "string": "XXXXX",
        "valueType": "STRING"
    }
}

but I need it to look like this:

{
    "instanceType": {
        "string": "XXXXXX",
        "valueType": "STRING"
    }
}