topic Re: ClassCastExceptions with JSON response in Integration and Testing

ClassCastExceptions with JSON response

GeordieMc — Thu, 29 Apr 2021 06:30:10 GMT

Hi,

I was wondering if anyone has experienced ClassCastException when trying to prase a JSON response.

I'm using Postman to run some end to end testing and thought I was getting nothing in the response, but on closer inspection a JSON message is being returned, bit it is throwing a ClassCastException.

I've taken the response and used it to define some test cases to iron out any exceptions, but whenever I try end-to-end testing it throws it again.

Kind regards

Re: ClassCastExceptions with JSON response

GeordieMc — Fri, 30 Apr 2021 11:01:48 GMT

I found the solution.

The JSON responses starts with "ZWNBSP" character (zero width no-break space) in the response.

Re: ClassCastExceptions with JSON response

GeordieMc — Fri, 07 May 2021 05:31:07 GMT

By applying a regex and adding a replace all, we managed to fix the issue and were able to parse the response.

JSONDeserializer<Map<String, Object>> js = new JSONDeserializer<>();
pspResponseMap = js.deserialize(response.replaceAll("[\\p{C}]", ""), Map.class);