Configuring the CalendarUserAuthenticationProvider object

Let's perform the following steps to configure CalendarUserAuthenticationProvider:

1. Update the SecurityConfig.java file to refer to our newly created CalendarUserAuthenticationProvider object, and remove the reference to CalendarUserDetailsService, as shown in the following code snippet:

        //src/main/java/com/packtpub/springsecurity/configuration/
        SecurityConfig.java

        @Autowired CalendarUserAuthenticationProvider cuap; 
        @Override
        public void configure(AuthenticationManagerBuilder auth) 
        throws Exception {
           auth.authenticationProvider(cuap);
        }

1. Restart the application and ensure everything is still working. As a user, we do not notice anything different. However, as a developer, we know that CalendarUserDetails is no longer required; we are still able to display the current user's first and last names, and Spring Security is still able to leverage CalendarUser for authentication.

Your code should now look like chapter03.05-calendar.