Grails 2.1.1 and spring security messages - grails-2.1

Question

Anyone experiencing the error messages for failed logins not appearing?
I am upgrading a grails 1.3.7 app to grails 2.1.1 and I have 2 issues with the spring security core functionality.
First, if I try an invalid login the auth fails but there is no error message just {} in the flash message.
Second, I was using a method like this to get the current count of active sessions. It no longer is accurate, as it just increases and doesn't recognize a logout.
def getCurrentSessionCount(){
def sessioncount = 0
sessionRegistry.getAllPrincipals().each{
sessioncount += sessionRegistry.getAllSessions(it, false).size()
}
return sessioncount;
}

Answer 1

Okay well this was a difference in the LoginController how the error messages were getting populated. In 1.3.7 and previous security plugin the code looks like:
msg = SpringSecurityUtils.securityConfig.errors.login.expired
but for 2.1.1 and the upgraded spring security plugin 1.2.7.3 the code needs to use the context like:
msg = g.message(code: "springSecurity.errors.login.disabled")
The session count has to do with a modification to the web.xml that you need to make to add the session listener, however in the new spring 3.0 it was moved so the new entry should look like:
<listener>
<listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
</listener>