public synchronized AppCookieManager getAppCookieManager() {
    if (appCookieManager == null) {
      appCookieManager = new AppCookieManager();
    }
    return appCookieManager;
  }
Get the associated app cookie manager.

@return the app cookie manager
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/URLStreamProvider.java