VaadinSessionScope

I try to save user details in a vaadinsessionscope. I have the class DominoSession like

@VaadinSessionScope
public class DominoSession {
	
	private VaadinRequest vaadinrequest = null;
	private static DominoSession instance = null;
	
	private static Session dominosession = null;
	private String username = "";
	private String usernamecommon = "";
	private Vector<String> roles = new Vector<String>();
	private static Config configuration;
	private Dialog restartDialog = new MessageDialog("Starten Sie die Anwendung bitte über Notes neu.");
	
	public DominoSession(
	 Session session,
	 String username,
	 String usercommon,
	 Vector<String> roles
	) {
		dominosession = session;
		this.username = username;
		this.usernamecommon = usercommon;
		this.roles = roles;
	}
	
	public DominoSession(VaadinRequest vaarequest) {
		this.vaadinrequest = vaarequest;
		
		Notification notification = new Notification(
		        "Ihre Session ist abgelaufen. "
		      + "Starten Sie die Anwendung bitte über Notes neu. ",
		      5000,Position.TOP_START);
		
		DominoSession.configuration = Config.getInstance();
		Cookie[] kekse = 			this.vaadinrequest.getCookies();
		String ltpatoken = "";
		for(Cookie keks:kekse) {
			if(keks.getName().equalsIgnoreCase("LtpaToken"))ltpatoken = keks.getValue();
		}
		
		if(ltpatoken.length()>0) {
			try {
				
				long startTime = System.currentTimeMillis();
				dominosession 		= NotesFactory.createSession(Config.getInstance().getDominoDomain(), ltpatoken );
		
				long estimatedTime = System.currentTimeMillis() - startTime;
				
				System.out.println("get domino session time: " + estimatedTime );
				
				System.out.println(dominosession.getClass().getName());
				this.username 		= dominosession.getUserName();
				this.usernamecommon = dominosession.getCommonUserName();
				Database dominodb 	= dominosession.getDatabase("", configuration.getDominoDbPath());
				this.roles 			= dominodb.queryAccessRoles(dominosession.getUserName());
				
				DominoSession.instance = this;
				
				if(dominodb != null) dominodb.recycle();
				
				
							
			} catch (NotesException e) {
				e.printStackTrace();
				
				if(e.getMessage().contains("Single Sign-on Token has expired")) {			
					if(!UtilsBeanProvider.wasRestartMessageShown() ) {
						restartDialog.open();				
						UtilsBeanProvider.setRestartMessageShown(true);
					}
				}
				
			} 
		} else {
		
			if(!UtilsBeanProvider.wasRestartMessageShown() ) {
				restartDialog.open();
				UtilsBeanProvider.setRestartMessageShown(true);
			}
		}
	}
	
	/* new */
	public static DominoSession getDominosession() {
		if(instance == null) {
			
			DominoSession.instance =  new DominoSession(VaadinRequest.getCurrent());
		}
		
		return instance;
	}
		
	
	
	
	/********************************* */
	private void openDialog(String dialogMessage) {
	....
	}
}

and the Mainview looks like

@UIScope
@Component
public class MainView extends VerticalLayout {


	@Autowired
	public MainView(StatisticView statisticView, StatisticRoleFactory statisticRoleFactory) {
				
		System.out.println("Main View = " + UtilsBeanProvider.getUser().getUsername());
			
		}


}

Then If I and a colleague of mine opens the Route. We both see my username? I thought the vaadinsession depends on httpsession?

I thought the vaadinsession depends on httpsession?

Yes it does. My guess is that problem is in UtilsBeanProvider.