Vaadin Push don't work correctly

I am trying to update one Ui from another. I use spring + vaadin, when i try update ui i can't see immediately changes, until that time I click on content.
This is my main UI code 

@SpringUI
@UIScope
@Title("Meduchet")
@Widgetset("DashboardWidgetSet")
@Theme("dashboard")
@Push(transport=Transport.LONG_POLLING,value=PushMode.MANUAL)
@SuppressWarnings("serial")
public class DashboardUI extends UI {

    @Autowired
    private DashboardEventBus eventBus;
    @Autowired
    private DataProvider dataProvider;
    @Autowired
    private Broadcaster broadcaster;


    @Override
    protected void init(VaadinRequest request) {
        eventBus.register(this);
        Responsive.makeResponsive(this);
        addStyleName(ValoTheme.UI_WITH_MENU);
        updateContent();
        Page.getCurrent().addBrowserWindowResizeListener(new BrowserWindowResizeListener() {
            @Override
            public void browserWindowResized(final BrowserWindowResizeEvent event) {
                eventBus.post(new BrowserResizeEvent());
            }
        });
    }

And my View where i register to boradcaster

@SuppressWarnings({ "serial" })
public class DoctorGridView extends VerticalLayout implements View, BroadcastListener { @Override
    public void receiveBroadcast() {
        UI.getCurrent().access(new Runnable() {
            
            @Override
            public void run() {
                List<Doctor> data=DashboardUI.getDataProvider().getDoctors();
                if (data!=null){
                    grid.setContainerDataSource(new BeanItemContainer<Doctor>(Doctor.class,data));    
                }
                UI.getCurrent().push();
            }
        });
    }

public DoctorGridView() {
        setSizeFull();
        addStyleName("transactions");
        DashboardUI.getDashboardBroadcaster().register(this);
..
}

@Override
    public void detach() {
        super.detach();
        DashboardUI.getDashboardEventbus().unregister(this);
        DashboardUI.getDashboardBroadcaster().unregister(this);
    }

And my Broadcaster

@Component
@Scope(scopeName = "singleton", proxyMode = ScopedProxyMode.TARGET_CLASS)
public class Broadcaster implements Serializable {

    /**
     * @author Vova
     */
    private static final long serialVersionUID = 1L;

    private  ExecutorService executorService = Executors.newSingleThreadExecutor();

    private  List<BroadcastListener> listeners = new ArrayList<BroadcastListener>();

    public  synchronized void register(BroadcastListener listener) {
        listeners.add(listener);
    }

    public  synchronized void unregister(BroadcastListener listener) {
        listeners.remove(listener);
    }

    public  synchronized void broadcast() {
        for (final BroadcastListener listener : listeners)
            executorService.execute(new Runnable() {
                @Override
                public void run() {
                    listener.receiveBroadcast();
                }
            });
    }

    public interface BroadcastListener {
        void receiveBroadcast();
    }
}

Have you checked that UI.getCurrent() returns the right thing in receiveBroadcast()?
If I read that right, it's run in another thread, so UI.getCurrent() will probably not return the right UI.
 

Tom Rauchenwald: Have you checked that UI.getCurrent() returns the right thing in receiveBroadcast()?
If I read that right, it's run in another thread, so UI.getCurrent() will probably not return the right UI.

 

Thank you, Tom