Tracking cpu usage on application instances with JOnAS

Hello JOnAS users,

We have a JOnAS instance running some EAR, WAR applications (about 10-15) and we noticed that Jonas JVM wastes 50% cpu. (100% on one core on a dual-core)
We know that's probably because of one of our application but there is no way to track down the application which spends too much CPU.
Is there a tool (provided by JOnAS or not) which can help us to track this ?

Thanks,

Cordialement,

Anthony BOUQUET

LOGIC
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