To all: Is there a way to pass session from one web application to another web application? For example, I have a web app (context root is /dwm), and in this application I do "session.setAttribute("tablist", tablist);" The variable tablist is an array containing names of a tab button which takes me to a different web app (context root is /rehabweb). In /rehabweb I would like to generate the tab buttons again by doing: "tablist = session.getAttribute("tablist");" so I don't have to go to the database to get it again. When I check my debugger the session variables from /dwm are gone once I reach /rehabweb. Can you pass session id as an query parameter and retrieve the original session somehow? I'm not sure how you would do this.