I have a web application which is built with Java Spring JSF. we use Spring security for the login and JPA hibernate for the Data Access. For the front-end UI we have used JSF and all the web pages consist of JSF components and JQuery AJAX for real-time updates. Suddenly top management has asked whether we can use vaadin inside our project and do things easily. I’m totally new to vaadin, and I’d like to know how to integrate vaadin to existing web application and whether it is possible to integrate with the technologies we have?