I see the following exception on the startup

May 28, 2015 1:29:37 PM hudson.triggers.SafeTimerTask run
SEVERE: Timer task jenkins.metrics.util.AutoSamplingHistogram$PeriodicWorkImpl@440d8165 failed
java.lang.NullPointerException
at jenkins.metrics.util.AutoSamplingHistogram.update(AutoSamplingHistogram.java:66)
at jenkins.metrics.util.AutoSamplingHistogram$PeriodicWorkImpl.doRun(AutoSamplingHistogram.java:90)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)