Using ChallengeGuard

[tim]

I'm trying to use the new ChallengeGuard but must be missing something.  The 
following code skips the guard and goes directly to the resource for 
http://localhost/user/1234:

@Override
public synchronized Restlet createRoot() {
  Router router = new Router(getContext());
                
  // protected resources
  // -- user
  Router userResources = new Router(getContext());
  userResources.attach("/{id}", UserResource.class);
                
  ChallengeGuard userGuard = new ChallengeGuard(getContext(), 
ChallengeScheme.HTTP_DIGEST, new ResourceAuthorizer());
  userGuard.getAuthenticator().setVerifier(new AuthVerifier());
                userGuard.setNext(userResources);
                
  router.attach("/user", userGuard);
                
  // static files
  File pwd = new File(".");
  Directory dir = new Directory(getContext(), 
"file:///"+pwd.getAbsolutePath()+"/"+STATIC_FILE_DIR);
  router.attach("/", dir);
                
  return router;
}

Thanks in advance.

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