LRU Statistics thread should be daemon

"LRU Statistics #0" prio=10 tid=0x00007f4edc7dd800 nid=0x211a waiting
on condition [0x00007f4e631e2000]
  java.lang.Thread.State: TIMED_WAITING (parking)
       at sun.misc.Unsafe.park(Native Method)
       - parking to wait for  <0x00007f4e88acc968> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
       at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
       at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:583)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:576)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
       at java.lang.Thread.run(Thread.java:619)