rest-assured/src/main/java/io/restassured/builder/ResponseBuilder.java
public Response build() {
        final int statusCode = restAssuredResponse.statusCode();

        if (statusCode < 100 || statusCode >= 600) {
            throw new IllegalArgumentException(format("Status code must be greater than 100 and less than 600, was %d.", statusCode));
        }

        if (StringUtils.isBlank(restAssuredResponse.statusLine())) {
            restAssuredResponse.setStatusLine(restAssuredResponse.statusCode());
        }

        restAssuredResponse.setRpr(new ResponseParserRegistrar());
        return restAssuredResponse;
    }
public Response build() {
        final int statusCode = restAssuredResponse.statusCode();

        if (statusCode < 100 || statusCode >= 600) {
            throw new IllegalArgumentException(format("Status code must be greater than 100 and less than 600, was %d.", statusCode));
        }

        if (StringUtils.isBlank(restAssuredResponse.statusLine())) {
            restAssuredResponse.setStatusLine(restAssuredResponse.statusCode());
        }

        restAssuredResponse.setRpr(new ResponseParserRegistrar());
        return restAssuredResponse;
    }
Build the actual response

@return The response object