Issue

High CPU usage in JDG 6.1. There is the following thread in Thread Dump.

"HotRodServerWorker-161" prio=10 tid=0x00007f1995b89000 nid=0x13ab runnable [0x00007f17140bf000]
  java.lang.Thread.State: RUNNABLE
  at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
  at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
  at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
  at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
  - locked <0x00007f1ae34fc1e8> (a sun.nio.ch.Util$2)
  - locked <0x00007f1ae34fc1d8> (a java.util.Collections$UnmodifiableSet)
  - locked <0x00007f1ae34fc1f8> (a sun.nio.ch.EPollSelectorImpl)
  at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
  at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64)
  at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409)
  at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206)
  at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88)
  at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
  at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
  at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:722)