use waffle securityFilter with grails (single sign on against an windows active directory)

1. install grails
2. grails create-app
3. install grails templates "grails install-templates"
4. download waffle from http://dblock.github.io/waffle/
5. copy waffle jar files to \lib (guava, jna, platform, slf4j-api, waffle-nja)
6. edit \src\templates\war\web.xml

Now following controller code should work, showing a remote user as "domain\user":

class HelloController {
    def index() {
        render "user is " + request.remoteUser + " - " + request.authType
    }
}

tested on windows 7, 64bit, oracle jdk 1.7, grails 2.3.7 and waffle 1.5