final AtomicReference<String> response = new AtomicReference<String>();
AsyncHttpClient c = new AsyncHttpClient();
WebSocket webSocket = c.prepareGet(wsUrl + "/suspend").execute(new WebSocketUpgradeHandler.Builder().build()).get();
assertNotNull(webSocket);
webSocket.addWebSocketListener(new WebSocketTextListener() {
@Override
public void onMessage(String message) {
response.set(message);
l.countDown();
}