Deadlock shutting down zookeeper

"main-EventThread" daemon prio=5 tid=0x00007fd27488a800 nid=0x6f1f waiting on condition [0x000000011834b000]
   java.lang.Thread.State: WAITING (parking)
  at sun.misc.Unsafe.park(Native Method)
  - parking to wait for  <0x00000007c5b8d3a0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
  at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
  at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)

"main-SendThread(localhost:59510)" daemon prio=5 tid=0x00007fd274eb4000 nid=0x9513 waiting on condition [0x0000000118042000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
  at java.lang.Thread.sleep(Native Method)
  at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
  at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
  at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)

"SyncThread:0" prio=5 tid=0x00007fd274d02000 nid=0x730f waiting for monitor entry [0x00000001170ac000]
   java.lang.Thread.State: BLOCKED (on object monitor)
  at org.apache.zookeeper.server.ZooKeeperServer.decInProcess(ZooKeeperServer.java:512)
  - waiting to lock <0x00000007c5b62128> (a org.apache.zookeeper.server.ZooKeeperServer)
  at org.apache.zookeeper.server.FinalRequestProcessor.processRequest(FinalRequestProcessor.java:144)
  at org.apache.zookeeper.server.SyncRequestProcessor.flush(SyncRequestProcessor.java:200)
  at org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:131)

"main-EventThread" daemon prio=5 tid=0x00007fd2753a3800 nid=0x711b waiting on condition [0x0000000117a30000]
   java.lang.Thread.State: WAITING (parking)
  at sun.misc.Unsafe.park(Native Method)
  - parking to wait for  <0x00000007c9b106b8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
  at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
  at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)

"main" prio=5 tid=0x00007fd276000000 nid=0x1903 in Object.wait() [0x0000000108aa1000]
   java.lang.Thread.State: WAITING (on object monitor)
  at java.lang.Object.wait(Native Method)
  - waiting on <0x00000007c5b66400> (a org.apache.zookeeper.server.SyncRequestProcessor)
  at java.lang.Thread.join(Thread.java:1281)
  - locked <0x00000007c5b66400> (a org.apache.zookeeper.server.SyncRequestProcessor)
  at java.lang.Thread.join(Thread.java:1355)
  at org.apache.zookeeper.server.SyncRequestProcessor.shutdown(SyncRequestProcessor.java:213)
  at org.apache.zookeeper.server.PrepRequestProcessor.shutdown(PrepRequestProcessor.java:770)
  at org.apache.zookeeper.server.ZooKeeperServer.shutdown(ZooKeeperServer.java:478)
  - locked <0x00000007c5b62128> (a org.apache.zookeeper.server.ZooKeeperServer)
  at org.apache.zookeeper.server.NIOServerCnxnFactory.shutdown(NIOServerCnxnFactory.java:266)
  at org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster.shutdown(MiniZooKeeperCluster.java:301)