Expired Portal sessions

[CR #335792] If the portal session expires before Jaguar authorization cache, you can go into an infinite loop telling the user their session is expired and they have to re-login.

Workaround: Set sessionDuration and com.sybase.jaguar.server.authtimeout to the same values. See “Setting Enterprise Portal and session timeouts” in Chapter 5, “Setting up Security for Enterprise Portal,” in the Enterprise Security Administration Guide for more information.