1. Open a two browser windows like i have opened in attached screenshot.
2. Over first window, open https://localhost:8443/example/control/authview/findExampleAjax
3. Over second window, open https://localhost:8443/example/control/FindExample
4. Now create new example from first window's create example form.
5. Push notification should be shown on top-right corner of page with "New example created: exampleId" for both the windows.
Above procedure can be followed to see example update notification.