With JSP, one way around this is to disconnect from the session before 
placing it in the request, then use a scriptlet to reconnect to the 
session before rendering the view.  If for some reason you have a long 
delay between the controller returning a request and the view actually 
being rendered, this could help.  Its hard for me to imagine a web app 
where this would ever really occur, though.  And if you are building a 
genuinely enterprise-class app, you probably shouldn't be using this 
pattern, as it kind of breaks MVC anyway.