@Override
    public boolean validateResponse() {
        if (request.isError()) {
            return false;
        } else if (request.returnValues().size() == 0) {
            return false;
        } else if (!checkReturnTypes(request)) {
            log.warning("Invalid return types for config response: " + errorMessage());
            return false;
        }
        return true;
    }
Represents version 3 config request for config clients. Provides methods for inspecting request and response
values.

See {@link JRTServerConfigRequestV3} for protocol details.

@author Ulf Lilleengen
config/src/main/java/com/yahoo/vespa/config/protocol/JRTClientConfigRequestV3.java