Use Grails plugin spring-security-core for authentication

I tried to replace my custom User class with Grails’ spring-security-core plugin. It includes roles to deal with authorization aspects.

I followed the steps in the documentation for both spring-security-core spring-security-ui plugins. I created the artifacts with:

$ grails s2-quickstart grails_mysql User Role

But the Grails bootstrap gets a NullPointerException as it tries to setup dependency injection.