Notifications when running behind ProgressIndicator

Vaadin 6 / 7 / 8
1

Hey, so my problem here is that when I have multiple tabs open and I try to use Notifications while running in a background thread under a ProgressIndicator my notification shows up on the other tab rather than the one I was working in. I was guessing the background thread is not able to get a hold of the current UI but I tried storing a reference to the ui and using the deprecated method off the ui to show notifications but its still doing the same thing. What am I missing? Any suggestions?


    //implementation of ProgressIndicator that enables/dissables itself on attach/detach.
    final BusyWindow bw = EditEnvPanel.this.uiCompFact.createBusyWindow("Saving changes"); 
    final Lock lock = getSession().getLock();

    final UI ui = getUI(); 
    ui.addWindow(bw);
   
    
    Runnable r = new Runnable(){
      public void run(){
        lock.lock();
        try{
          updatedEnv = EditEnvPanel.this.dao.saveEnvironment(env);
          
          ui.getNavigator().navigateTo(EnvDetailPanel.getFragment(updatedEnv.getEnvId()));
          
        } catch (IllegalArgumentException e){
//          ui.showNotification(e.getMessage(), Type.WARNING_MESSAGE);
            Notification.show(e.getMessage(), Type.WARNING_MESSAGE);
        }
        finally{
          if(lock != null)
            lock.unlock();
          bw.close();
        }
      }
    };
    
    this.execSvc.submit(r);