Hello, I'm running a webapp on JBoss 4.0.5GA. It runs fine most of the time.
However -- and this happens almost every day -- there comes a moment when JBoss seems to go "out to lunch". Once this happens, the following is all I ever see when trying to use my webapp:
java.rmi.NoSuchObjectException: Could not activate; failed to restore state
This of course gives the impression of extreme instability, since the only way I've found to fix this is to undeploy everything and restart JBoss.
How do I counteract this? Why is it happening? I need 100% uptime, and I'm not even really doing anything serious once this starts happening.