request.setReadTimeout((int) DEFAULT_READ_TIMEOUT_MILLIS);
        final HttpUnsuccessfulResponseHandler backoffHandler =
            new HttpBackOffUnsuccessfulResponseHandler(
                new ExponentialBackOff()).setSleeper(sleeper);
        final Credential credential = credentialSupplier.get();
        request.setInterceptor(credential);
        request.setUnsuccessfulResponseHandler(new HttpUnsuccessfulResponseHandler() {
            @Override