SlideLoginModule with Jetty6

Hi All,
Has anybody has successfully used SlideLoginModule with Jetty6? I
embedded Jetty6 into my app and then give Jetty slide.war so my app
acts as a DAV server. I set all the necessary JAAS stuff to get the
authentication going. I see that authentication is working but always
failed with message:
        AUTH FAILURE: incorrect role for root

I tried user john, john2 but the result is the same.  After doing the
source level debugging, I found the error is in
JAASUserPrincipal.java. In particular getRoles() always returning
null.

I read for the maillist archive the following from Rob Moore

"  After some trolling, I discovered that Jetty's JAASGroup.ROLES field
  changed from "roles" in 4.2 to "__roles__" in 5. As a result,
  JAASUserPrincipal.getRoles() expects the group object to be named the
  equivalent of JAASGroup.ROLES and doesn't find the appropriate
  SlideGroup (since it passes back the former value).

  Anyhow, I hope this helps somebody along the line. Alas, I don't see any
  immediate way to fix this issue while maintaining backward
  compatibility. Perhaps SlideLoginModule could be made configurable so
  that a different implementation of SlideGroup or more generally
  java.security.acl.Group could be substituted. "

I am wondering if anybody has a solution to this issue.

Thank you in advance
Gil.