Vaadin 8.3.3 + Spring Security Integration

I’ve integrated my Vaadin project with Spring security, hence I’m having a problem with session management. Specifically with concurrent session management. Wherein the user is still allowed to log in , in different browser in single PC. Attached my configuration and the class that extends AbstractSecurityWebApplicationInitializer.
How can I manage limit the login of a specific user? (7.29 KB) (2.38 KB)