Hi,

I keep getting the following error in JBoss logs (JBAS 4.2.2):

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[my.virtual.host].[/]] Cannot find message associated with key standardSession.sessionEvent
java.lang.IllegalStateException: Please end the HttpSession via org.jboss.seam.web.Session.instance().invalidate()

I have 2 different JBoss servers (different networks, not clustered), with the application deployed to both. All configs and libs are the same practically. But I only get this error on 1 of the servers, and can't reproduce it on the other or trace why it is being caused. This error comes through every 5 or so minutes.

Session timeout in the webapp is configured to 20 minutes.