XNIO-1 Accept
  at sun.nio.ch.KQueueArrayWrapper.kevent0(IJIJ)I (Native Method)
  at sun.nio.ch.KQueueArrayWrapper.poll(J)I (KQueueArrayWrapper.java:198)
  at sun.nio.ch.KQueueSelectorImpl.doSelect(J)I (KQueueSelectorImpl.java:117)
  at sun.nio.ch.SelectorImpl.lockAndDoSelect(J)I (SelectorImpl.java:86)
  at sun.nio.ch.SelectorImpl.select(J)I (SelectorImpl.java:97)
  at sun.nio.ch.SelectorImpl.select()I (SelectorImpl.java:101)
  at org.xnio.nio.WorkerThread.run()V (WorkerThread.java:532)