MockClient mapError failed to map object

[Dutzen]

If i mock the client (MockClient) and return an ErrorObject. The mappedErrorObject is null due to Nullpointer Exception in the mappError method.

The Nullpointer is produced by the config in the try catch block (see below) (config = null) so the objectMapper can't be called on the object and the method returns null.

BaseResponse.java
 @Override
    public <E> E mapError(Class<? extends E> errorClass) {
        if (!isSuccess()) {
            String errorBody = getErrorBody();
            if(String.class.equals(errorClass)){
                return (E) errorBody;
            }
            try {
                return config.getObjectMapper().readValue(errorBody, errorClass);
            } catch (RuntimeException e) {
                setParsingException(errorBody, e);
            }
        }
        return null;
    }

The mappedError is still null even if i return a ResponseBody.

To Reproduce

1. Mock the client and expect:

   MockClient mock = MockClient.register();
   mock.expect(HttpMethod.GET, url).thenReturn(errorResponseDTO).withStatus(INTERNAL_SERVER_ERROR); 

Expected behavior The errorResponseDTO is returned when calling Unirest.get(url).asObject(ItemDTO.class).mapError(ErrorResponseDTO.class) but its null.

Environmental Data:

• Java Version 11
• Version [e.g. 3.11.01]

[ryber]

Complete in 3.11.02