How to show content of a process variable in UI table

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Hi,

I have a process variable "test", which is initialized as:

import groovy.json.JsonBuilder;
List<Object> test = new ArrayList<Object>();
def builder = new JsonBuilder();

def line1 = builder {
        name "Sam"
        age 32
        }
test.add(line1);

def line2 = builder {
        name "Tom"
        age 23
        }
test.add(line2);

return test;

And in UI designer I have a variable: test = ../API/bpm/caseVariable/{{task.caseId}}/test

The problem is that if I just display test.value in a text area it shows the values properly, but in a table using:
- content = test.value
- column keys = name, age
nothing appears.

So, what could I be doing wrong?

Thanks for the help.

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