OS X Mavericks: Java High CPU

Hi,

I'm running OS X 10.9 (13A603) on a MBA. I'm up to date with everything and for some reason the Java process is running at ~150% CPU. I've tried to kill it and it just reopens it. I've rebooted, shut down all my apps, etc and it's still churning away. Any ideas on how to identifiy the cause and stop the high CPU load?

Thanks,

Martin