I tried to thread-dump the JBoss process
Can you attach a couple of those thread dumps, taken at an interval of around 5 seconds each, when this behaviour occurs? Maybe someone might be able to find some hints in there.
Thank you very much for your quick reply. Unfortunately I hadn't thought about taking several dump at regular intervals. I'll do so the next time the problem occurs.
is that the most useful command?
Thank you very much!