I want to let jmeter exit while controller when response value `"model_name": "Model-Test-2022-02-24T04:34:32454-0001-v1-8k"` is found in response data. **sample response data:** { "message": "success", "valid_model_list": [ { "meta_data": { "corpus_list": [ "Test-2022-02-15T01:38:57.000337-0001" ], "id": "1" }, "test_duration": "0.17 hrs" }, "model_name": "Model-Test-2022-02-24T04:34:32454-0001-v1-8k", "status": "ok" }, { "meta_data": { "corpus_list": [ "Test-2022-02-15T01:38:57.000337-0001" ], "id": "2" }, "test_duration": "0.17 hrs" }, "model_name": "testmod2-v1-8k", "status": "ok" } ] } I have set followings: 1. user defined variable `modelnameresult = Model-Test-${variable}-0001-v1-8k` (the `${variable}` was set in previous request `Test-${__time(yyyy-MM-dd'T'hh:mm:ssSSS,variable)}-${counter}` 2. while controller condition `${__jexl3("${model_name}" != "${modelnameresult}",)}` The JSON expression is tested works to extract a list of "model_name". however, the GET request isn't exiting when the response value is already there. [![enter image description here][1]][1] [![enter image description here][2]][2] [![enter image description here][4]][4] [![enter image description here][5]][5] [![enter image description here][6]][6] [1]: https://i.sstatic.net/PgXYI.png [2]: https://i.sstatic.net/bzNP6.png [4]: https://i.sstatic.net/1PEjM.png [5]: https://i.sstatic.net/aK1oH.png [6]: https://i.sstatic.net/CADvh.png