Sounds like mod_jk isn't configured for sticky sessions. When you post the login
form, it's not going back to the server that sent it to you and you get the error you
report.
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4028961#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...