Why this Spring application with java-based configuration don't work properly

Question

I started recently a project with the Spring framework with the ojective to develop it without none XML config file, only Java code.

In this current moment, I add th

Answer 1

I think the problem is that this:

.loginPage("spring/index").permitAll()

should be this:

.loginPage("/spring/index").permitAll() //note the '/' at the beginning of the uri