Official Vaadin Spring 1.0.0 Stable + Spring Security

Hello community,

I followed the Vaadin Spring tutorial (without Spring Boot) and I got Vaadin Spring 1.0.0(Stable) working. But now I want to secure my app with Spring Security. I just followed the official Spring docs but it doesn't work.

>>> I opened a stackoverflow topic where you can look up a bit more details.

My problem is that opening the URL redirects to http://localhost:8080/myApp/login successfully but I get a

"HTTP Status 404 - Request was not handled by any registered handler."

Can anyone help me?

Regards