io.restassured.builder.ResponseBuilder.build() ignores io.restassured.RestAssured.registerParser(String contentType, Parser parser)

[theoamonteiro]

I think 51443bc should actually check for NPE before creating a new instance of ResponseParserRegistrar. I was trying to parse a application/yaml by filtering the response and converting from YAML to JSON using Jackson:

class YamlToJsonFilter implements OrderedFilter {

    @Override
    public Response filter(FilterableRequestSpecification requestSpec, FilterableResponseSpecification responseSpec, FilterContext ctx) {
        try {
            Response response = ctx.next(requestSpec, responseSpec);
            
            if(!"application/yaml".equals(response.contentType())) {
            	return response;
            }

            ObjectMapper yamlReader = new ObjectMapper(new YAMLFactory());
            Object obj = yamlReader.readValue(response.getBody().asString(), Object.class);

            ObjectMapper jsonWriter = new ObjectMapper();
            String json = jsonWriter.writeValueAsString(obj);

            ResponseBuilder builder = new ResponseBuilder();
            builder.clone(response);
            builder.setBody(json);
            
            Response result = builder.build();
            if(result instanceof RestAssuredResponseImpl tweakedResult) {
            	tweakedResult.getRpr().registerParser("application/yaml", Parser.JSON);
            }
            return result;
        } catch (Exception e) {
            throw new IllegalStateException("Failed to convert the request: " + ExceptionUtils.getMessage(e), e);
        }
    }

    @Override
    public int getOrder() {
        return OrderedFilter.HIGHEST_PRECEDENCE;
    }

}

I had to make the tweak because I noticed that RestAssured.registerParser("application/yaml", Parser.JSON) had no effect. Maybe I am missing something and there is a better way to parse YAML and validate the properties with io.restassured.response.ValidatableResponseOptions.body(String path, ResponseAwareMatcher<Response> responseAwareMatcher). Please show me a better way if it is the case.