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If I check my activity monitor there is an instance of java that is constantly taking 5% CPU or more. I know that there is some app that are using java on my system and therefore my question is:

Is there any way to figure out what app that is using java without closing all running apps?

Note: All "main" applications is closed (No apps i dock) so I know that that it is one of my background/menubar applications.

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Does the output of ps aux | grep java in Terminal give a hint? – patrix Feb 25 '13 at 18:48
Yeah, it tells me that -Dapp and -DappBaseName is related to CrashPlan but I quit that app and there is no traces left in activity monitor about it so I don't understand how it could be running. – Nings Feb 26 '13 at 23:02
The Java process is the trace then :-) – patrix Feb 27 '13 at 5:15
CrashPlan runs a background task as well that is controlled by a Launch Daemon in '/Library/LaunchDaemons/com.crashplan.engine.plist'. So to stop Crashplan running at all you need to delete this file or change it so it is not enabled. – Mark Mar 4 '13 at 10:30

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