I had a requirement in a recent project to have all logins handled by HTTPS, and I wanted to implement this using Grails 1.0.2 with the acegi-plugin. There seemed to be a number of issues with the plugin, specifically with some package names and configuring the ACEGI channel selectors. Of note are that the package names have changed in the ACEGI-Spring migration, for example, packages org.acegisecurity.util… and org.acegisecurity.securechannel… have become org.springframework.security.util and org.springframework.security.securechannel, respectively. I didn’t find this reflected in the online documentation for either Spring Security or Grails, at least not yet.