Сan not force the progressBar from thread

Flow
1

I can not force to update the progressBar to be updated from the thread (FeederThread).
The button should be pressed,next the stream starts, the progressBar should appear. What wrong?

@SpringComponent
@UIScope
@Push
@Route("push")
public class UploadEditor extends VerticalLayout {
    private FeederThread feederThread;
    private  ProgressBar bar;

    private void progresBarChanche(boolean value) {
        bar.setVisible(value);
        bar.setIndeterminate(value);
    }

    @Override
    protected void onAttach(AttachEvent attachEvent) {
   
    }

    @Override
    protected void onDetach(DetachEvent detachEvent) {
        // Cleanup
        feederThread.interrupt();
        feederThread = null;
    }
  
    public UploadEditor() {
        setup();
    }

    private void setup() {
        VerticalLayout progresLayout = new VerticalLayout();

        bar = new ProgressBar();
        progresLayout.add(bar);
        bar.setVisible(false);

        HorizontalLayout layoutBtn = new HorizontalLayout();

        Button startBtn = new Button(" Start Thread", VaadinIcon.DATABASE.create());

        Button cancelBtn = new Button("Отмена");
        cancelBtn.setSizeFull();
        startBtn.setSizeFull();

        layoutBtn.add(cancelBtn, startBtn);
        layoutBtn.setSizeFull();

        startBtn.addClickListener((event) -> {
           feederThread = new FeederThread(getUI().get(), this);
            feederThread.start();
        });

        add(progresLayout, layoutBtn);
        setAlignItems(FlexComponent.Alignment.CENTER);
    }
}

 private  class FeederThread extends Thread {
        private final UI ui;
        private final UploadEditor view;

        public FeederThread(UI ui, UploadEditor view) {
            this.ui = ui;
            this.view = view;
        }

        @Override
        public void run() {
            int count = 0;
            try {
               
               ui.access(() -> {view.progresBarChanche(true); ui.push();});
           
                while (count < 10) {
                    // Sleep to emulate background work
                    Thread.sleep(500);
                    System.out.println(count++);
                   // ui.access(() -> view.add(new Span(message)));
                }
         
                // Inform that we are done
                 ui.access(() -> {
                     view.progresBarChanche(false);
                });
            }catch (InterruptedException e){
                e.printStackTrace();
            }

        }
    }

maybe the problem is that I call UploadEditor by :

Dialog dialog = new Dialog(); 
dialog.add(uploadEditor); 
dialog.open();

from mymain page ?

maybe should turn on the push somewhere else?

If I verifying System.out.println(getUI().get().getPushConfiguration().getPushMode()); I get DISABLED