Collection Form Case Variable

Show process variable of type java.util.Collection in Form

Hi All,

I'm trying to access process variable which is a list of objects from the form. In form I used External URL call to retrieve it:


And it returns the following:

{ "case_id": "1040", "name": "mySpec", "description": "", "type": "java.util.Collection", "value": "[,,]" }

As far as I understand it returns some kind of references, but how do I get actual data?