Symptoms

Your java applications (Bamboo server, remote agent or any other java based application) suddenly start to use 100% CPU on a Linux box. There are no other installed applications that might be causing the problem. There are enough resources for the java program to run.

Cause

You are stumbling on java leap second bug (it's a bug in Linux kernel for some distributions, and only java programs seem to be affected).

Resolution

Run this command to restart 'ntp' service:

service ntpd stop; date -s "`date`";service ntpd start