HttpSession's won't exist until you create one (or you configure the server, or something else to do it by default automatically). This would be true of WebSphere, or any other app server. And yes, a session can exist without any information stored in it.
But i found in a document that if you enable session support on the server group for session management even if you dont create one, a default one will exist for the container to perform session management Regards Farouk
Joined: May 29, 2003
Server groups, eh? You may want to rephase the question and pose it to the WebSphere forum, since this is really a WebSphere specific issue.
subject: In websphere does a session exist for request