anchor.diff:  
   [source,bash]
   ----
  -curl -v -X GET \
  -  http://localhost:8080/frontend/user-name-with-propagated-token` \
  +curl -i -X GET \
  +  http://localhost:8080/frontend/user-name-with-propagated-token \
     -H "Authorization: Bearer "$access_token
   ----
   
  
positive.code: 
  [source,bash]
  ----
  curl -v -X GET \
    http://localhost:8080/frontend/user-name-with-propagated-token` \
    -H "Authorization: Bearer "$access_token
  ----
  
  
negative.code: 
  `FrontendResource` will use REST Client with `OpenID Connect Client Reactive Filter` to acquire and propagate an access token to `ProtectedResource` when either `/frontend/user-name-with-oidc-client-token` or `/frontend/admin-name-with-oidc-client-token` is called. And it will use REST Client with `OpenID Connect Token Propagation Reactive Filter` to propagate the current incoming access token to `ProtectedResource` when either `/frontend/user-name-with-propagated-token` or `/frontend/admin-name-with-propagated-token` is called.
  
  Finally, let's add a JAX-RS `ExceptionMapper`:
  
  [source,java]
  ----
  