Build: https://jenkins.thetaphi.de/job/Lucene-Solr-7.x-Linux/1140/
Java: 64bit/jdk-9.0.1 -XX:-UseCompressedOops -XX:+UseParallelGC

4 tests failed.
FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.BasicZkTest

Error Message:
SolrCore.getOpenCount()==2

Stack Trace:
java.lang.RuntimeException: SolrCore.getOpenCount()==2
        at __randomizedtesting.SeedInfo.seed([D2CC57DD4BE0EEF5]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:792)
        at 
org.apache.solr.cloud.AbstractZkTestCase.azt_afterClass(AbstractZkTestCase.java:147)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:897)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.base/java.lang.Thread.run(Thread.java:844)


FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.BasicZkTest

Error Message:
SolrCore.getOpenCount()==2

Stack Trace:
java.lang.RuntimeException: SolrCore.getOpenCount()==2
        at __randomizedtesting.SeedInfo.seed([D2CC57DD4BE0EEF5]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:792)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:288)
        at jdk.internal.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:897)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.base/java.lang.Thread.run(Thread.java:844)


FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.BasicZkTest

Error Message:
26 threads leaked from SUITE scope at org.apache.solr.cloud.BasicZkTest:     1) 
Thread[id=21328, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)    2) 
Thread[id=21339, name=watches-6376-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=21348, name=ScheduledTrigger-5134-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=21333, 
name=OverseerAutoScalingTriggerThread-99309595878031363-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=21323, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=21331, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=21332, 
name=OverseerCollectionConfigSetProcessor-99309595878031363-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:235)
         at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=21330, 
name=OverseerStateUpdate-99309595878031363-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:204)  
       at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    9) 
Thread[id=21351, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@9.0.1/java.lang.Object.wait(Native 
Method)         at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
   10) Thread[id=21349, name=Thread-5154, state=WAITING, 
group=TGRP-BasicZkTest]         at java.base@9.0.1/java.lang.Object.wait(Native 
Method)         at java.base@9.0.1/java.lang.Thread.join(Thread.java:1353)      
   at java.base@9.0.1/java.lang.Thread.join(Thread.java:1427)         at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
         at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
         at 
app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)   11) 
Thread[id=21350, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:34105, 
state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)   
      at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)   
      at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=21343, name=coreZkRegister-5129-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   13) 
Thread[id=21335, name=ScheduledTrigger-5134-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=21338, name=Thread-5153, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9.0.1/java.lang.Object.wait(Native Method)         at 
java.base@9.0.1/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1719)   15) 
Thread[id=21344, name=zkCallback-6374-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   16) 
Thread[id=21334, name=zkCallback-6374-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   17) 
Thread[id=21346, name=zkCallback-6374-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   18) 
Thread[id=21322, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   19) 
Thread[id=21340, name=ScheduledTrigger-5134-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   20) 
Thread[id=21345, name=zkCallback-6374-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   21) 
Thread[id=21327, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-SendThread(127.0.0.1:34105),
 state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)   
      at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)   
      at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)   22) 
Thread[id=21353, name=ProcessThread(sid:0 cport:34105):, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
   23) Thread[id=21342, name=searcherExecutor-5139-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   24) 
Thread[id=21329, name=zkConnectionManagerCallback-6375-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   25) 
Thread[id=21336, name=ScheduledTrigger-5134-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   26) 
Thread[id=21347, name=zkCallback-6374-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 26 threads leaked from 
SUITE scope at org.apache.solr.cloud.BasicZkTest: 
   1) Thread[id=21328, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)
   2) Thread[id=21339, name=watches-6376-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=21348, name=ScheduledTrigger-5134-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=21333, 
name=OverseerAutoScalingTriggerThread-99309595878031363-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=21323, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=21331, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=21332, 
name=OverseerCollectionConfigSetProcessor-99309595878031363-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:235)
        at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=21330, 
name=OverseerStateUpdate-99309595878031363-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:204)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   9) Thread[id=21351, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
  10) Thread[id=21349, name=Thread-5154, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Thread.join(Thread.java:1353)
        at java.base@9.0.1/java.lang.Thread.join(Thread.java:1427)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
        at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
        at app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)
  11) Thread[id=21350, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:34105, 
state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=21343, name=coreZkRegister-5129-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  13) Thread[id=21335, name=ScheduledTrigger-5134-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=21338, name=Thread-5153, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1719)
  15) Thread[id=21344, name=zkCallback-6374-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  16) Thread[id=21334, name=zkCallback-6374-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  17) Thread[id=21346, name=zkCallback-6374-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  18) Thread[id=21322, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  19) Thread[id=21340, name=ScheduledTrigger-5134-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  20) Thread[id=21345, name=zkCallback-6374-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  21) Thread[id=21327, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-SendThread(127.0.0.1:34105),
 state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
  22) Thread[id=21353, name=ProcessThread(sid:0 cport:34105):, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
  23) Thread[id=21342, name=searcherExecutor-5139-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  24) Thread[id=21329, name=zkConnectionManagerCallback-6375-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  25) Thread[id=21336, name=ScheduledTrigger-5134-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  26) Thread[id=21347, name=zkCallback-6374-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([D2CC57DD4BE0EEF5]:0)


FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.BasicZkTest

Error Message:
There are still zombie threads that couldn't be terminated:    1) 
Thread[id=21339, name=watches-6376-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=21348, name=ScheduledTrigger-5134-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=21338, name=Thread-5153, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9.0.1/java.lang.Object.wait(Native Method)         at 
java.base@9.0.1/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1719)    4) 
Thread[id=21344, name=zkCallback-6374-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=21334, name=zkCallback-6374-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=21346, name=zkCallback-6374-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=21340, name=ScheduledTrigger-5134-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=21343, name=coreZkRegister-5129-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    9) 
Thread[id=21345, name=zkCallback-6374-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=21327, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-SendThread(127.0.0.1:34105),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)   11) 
Thread[id=21335, name=ScheduledTrigger-5134-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=21342, name=searcherExecutor-5139-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   13) 
Thread[id=21329, name=zkConnectionManagerCallback-6375-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=21336, name=ScheduledTrigger-5134-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=21347, name=zkCallback-6374-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   1) Thread[id=21339, name=watches-6376-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=21348, name=ScheduledTrigger-5134-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=21338, name=Thread-5153, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1719)
   4) Thread[id=21344, name=zkCallback-6374-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=21334, name=zkCallback-6374-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=21346, name=zkCallback-6374-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=21340, name=ScheduledTrigger-5134-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=21343, name=coreZkRegister-5129-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   9) Thread[id=21345, name=zkCallback-6374-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=21327, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-SendThread(127.0.0.1:34105),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
  11) Thread[id=21335, name=ScheduledTrigger-5134-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=21342, name=searcherExecutor-5139-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  13) Thread[id=21329, name=zkConnectionManagerCallback-6375-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=21336, name=ScheduledTrigger-5134-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=21347, name=zkCallback-6374-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([D2CC57DD4BE0EEF5]:0)




Build Log:
[...truncated 12844 lines...]
   [junit4] Suite: org.apache.solr.cloud.BasicZkTest
   [junit4]   2> Creating dataDir: 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/build/solr-core/test/J2/temp/solr.cloud.BasicZkTest_D2CC57DD4BE0EEF5-001/init-core-data-001
   [junit4]   2> 1415611 WARN  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.SolrTestCaseJ4 
startTrackingSearchers: numOpens=16 numCloses=16
   [junit4]   2> 1415611 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.SolrTestCaseJ4 
Using PointFields (NUMERIC_POINTS_SYSPROP=true) w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 1415612 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.SolrTestCaseJ4 
Randomized ssl (true) and clientAuth (true) via: 
@org.apache.solr.util.RandomizeSSL(reason="", ssl=0.0/0.0, value=0.0/0.0, 
clientAuth=0.0/0.0)
   [junit4]   2> 1415613 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.SolrTestCaseJ4 
SecureRandom sanity checks: test.solr.allowed.securerandom=null & 
java.security.egd=file:/dev/./urandom
   [junit4]   2> 1415613 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.c.ZkTestServer 
STARTING ZK TEST SERVER
   [junit4]   2> 1415613 INFO  (Thread-5152) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1415613 INFO  (Thread-5152) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1415615 ERROR (Thread-5152) [    ] o.a.z.s.ZooKeeperServer 
ZKShutdownHandler is not registered, so ZooKeeper server won't take any action 
on ERROR or SHUTDOWN server state changes
   [junit4]   2> 1415713 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.c.ZkTestServer 
start zk server on port:34105
   [junit4]   2> 1415714 INFO  (zkConnectionManagerCallback-6367-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1415718 INFO  (zkConnectionManagerCallback-6369-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1415719 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/solrconfig.xml
 to /configs/conf1/solrconfig.xml
   [junit4]   2> 1415720 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/schema.xml
 to /configs/conf1/schema.xml
   [junit4]   2> 1415721 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/solrconfig.snippet.randomindexconfig.xml
 to /configs/conf1/solrconfig.snippet.randomindexconfig.xml
   [junit4]   2> 1415721 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/stopwords.txt
 to /configs/conf1/stopwords.txt
   [junit4]   2> 1415721 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/protwords.txt
 to /configs/conf1/protwords.txt
   [junit4]   2> 1415722 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/currency.xml
 to /configs/conf1/currency.xml
   [junit4]   2> 1415722 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/enumsConfig.xml
 to /configs/conf1/enumsConfig.xml
   [junit4]   2> 1415723 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/open-exchange-rates.json
 to /configs/conf1/open-exchange-rates.json
   [junit4]   2> 1415723 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/mapping-ISOLatin1Accent.txt
 to /configs/conf1/mapping-ISOLatin1Accent.txt
   [junit4]   2> 1415723 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/old_synonyms.txt
 to /configs/conf1/old_synonyms.txt
   [junit4]   2> 1415724 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/conf/synonyms.txt
 to /configs/conf1/synonyms.txt
   [junit4]   2> 1415724 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.SolrTestCaseJ4 
####initCore
   [junit4]   2> 1415725 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] 
o.a.s.c.SolrResourceLoader [null] Added 2 libs to classloader, from paths: 
[/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/lib,
 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/lib/classes]
   [junit4]   2> 1415745 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.c.SolrConfig 
Using Lucene MatchVersion: 7.3.0
   [junit4]   2> 1415758 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.s.IndexSchema 
[null] Schema name=test
   [junit4]   2> 1415823 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.s.IndexSchema 
Loaded schema test/1.0 with uniqueid field id
   [junit4]   2> 1415831 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [    ] o.a.s.c.ZkContainer 
Zookeeper client=127.0.0.1:34105/solr
   [junit4]   2> 1415833 INFO  (zkConnectionManagerCallback-6373-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1415837 INFO  
(zkConnectionManagerCallback-6375-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1415865 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1415865 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 88.99.242.108:8983_
   [junit4]   2> 1415866 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.Overseer Overseer 
(id=99309595878031363-88.99.242.108:8983_-n_0000000000) starting
   [junit4]   2> 1415868 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.ZkController Register node as live in 
ZooKeeper:/live_nodes/88.99.242.108:8983_
   [junit4]   2> 1415869 INFO  
(OverseerStateUpdate-99309595878031363-88.99.242.108:8983_-n_0000000000) 
[n:88.99.242.108:8983_    ] o.a.s.c.c.ZkStateReader Updated live nodes from 
ZooKeeper... (0) -> (1)
   [junit4]   2> 1415911 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.node' (registry 'solr.node') 
enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@66a234f
   [junit4]   2> 1415915 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jvm' (registry 'solr.jvm') 
enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@66a234f
   [junit4]   2> 1415915 INFO  
(SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jetty' (registry 
'solr.jetty') enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@66a234f
   [junit4]   2> 1415917 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_    ] o.a.s.c.TransientSolrCoreCacheDefault Allocating 
transient cache for 2147483647 transient cores
   [junit4]   2> 1416919 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.SolrResourceLoader [null] Added 2 libs to classloader, from paths: 
[/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/lib,
 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1/lib/classes]
   [junit4]   2> 1416938 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.SolrConfig Using Lucene MatchVersion: 7.3.0
   [junit4]   2> 1416956 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.IndexSchema [collection1] Schema name=test
   [junit4]   2> 1417022 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.IndexSchema Loaded schema test/1.0 with uniqueid field id
   [junit4]   2> 1417027 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.CoreContainer Creating SolrCore 'collection1' using configuration from 
collection collection1, trusted=true
   [junit4]   2> 1417028 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 
'solr.core.collection1.shard1.88.99.242.108:8983__collection1' (registry 
'solr.core.collection1.shard1.88.99.242.108:8983__collection1') enabled at 
server: com.sun.jmx.mbeanserver.JmxMBeanServer@66a234f
   [junit4]   2> 1417028 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.c.SolrCore 
solr.RecoveryStrategy.Builder
   [junit4]   2> 1417028 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.c.SolrCore 
[[collection1] ] Opening new SolrCore at 
[/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/core/src/test-files/solr/collection1],
 
dataDir=[/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/build/solr-core/test/J2/temp/solr.cloud.BasicZkTest_D2CC57DD4BE0EEF5-001/init-core-data-001/]
   [junit4]   2> 1417028 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.RandomMergePolicy RandomMergePolicy wrapping class 
org.apache.lucene.index.LogDocMergePolicy: [LogDocMergePolicy: 
minMergeSize=1000, mergeFactor=30, maxMergeSize=9223372036854775807, 
maxMergeSizeForForcedMerge=9223372036854775807, calibrateSizeByDeletes=false, 
maxMergeDocs=2147483647, maxCFSSegmentSizeMB=8.796093022207999E12, 
noCFSRatio=0.0]
   [junit4]   2> 1417050 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.UpdateHandler Using UpdateLog implementation: 
org.apache.solr.update.UpdateLog
   [junit4]   2> 1417050 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.u.UpdateLog 
Initializing UpdateLog: dataDir= defaultSyncLevel=FLUSH numRecordsToKeep=100 
maxNumLogsToKeep=10 numVersionBuckets=65536
   [junit4]   2> 1417050 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.CommitTracker Hard AutoCommit: disabled
   [junit4]   2> 1417050 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.CommitTracker Soft AutoCommit: disabled
   [junit4]   2> 1417051 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.RandomMergePolicy RandomMergePolicy wrapping class 
org.apache.lucene.index.AlcoholicMergePolicy: [AlcoholicMergePolicy: 
minMergeSize=0, mergeFactor=10, maxMergeSize=1878098553, 
maxMergeSizeForForcedMerge=9223372036854775807, calibrateSizeByDeletes=true, 
maxMergeDocs=2147483647, maxCFSSegmentSizeMB=8.796093022207999E12, 
noCFSRatio=0.1]
   [junit4]   2> 1417051 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.SolrIndexSearcher Opening [Searcher@79ab4d0a[collection1] main]
   [junit4]   2> 1417052 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.h.c.SpellCheckComponent Initializing spell checkers
   [junit4]   2> 1417085 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.DirectSolrSpellChecker init: 
{name=direct,classname=DirectSolrSpellChecker,field=lowerfilt,minQueryLength=3}
   [junit4]   2> 1417241 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.h.ReplicationHandler Commits will be reserved for 10000ms.
   [junit4]   2> 1417241 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: default
   [junit4]   2> 1417241 INFO  
(coreLoadExecutor-5138-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.u.UpdateLog 
Could not find max version in index or recent updates, using new clock 
1588953535754534912
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: direct
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: wordbreak
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: multipleFields
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: jarowinkler
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: external
   [junit4]   2> 1417242 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: freq
   [junit4]   2> 1417243 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: fqcn
   [junit4]   2> 1417243 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.h.c.SpellCheckComponent Loading spell index for 
spellchecker: perDict
   [junit4]   2> 1417244 INFO  
(searcherExecutor-5139-thread-1-processing-n:88.99.242.108:8983_ x:collection1 
s:shard1 c:collection1) [n:88.99.242.108:8983_ c:collection1 s:shard1  
x:collection1] o.a.s.c.SolrCore [collection1] Registered new searcher 
Searcher@79ab4d0a[collection1] main{ExitableDirectoryReader(Un

[...truncated too long message...]

heduledTrigger-5134-thread-3, state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >    8) Thread[id=21343, name=coreZkRegister-5129-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >    9) Thread[id=21345, name=zkCallback-6374-thread-3, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   10) Thread[id=21327, 
name=SUITE-BasicZkTest-seed#[D2CC57DD4BE0EEF5]-worker-SendThread(127.0.0.1:34105),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9.0.1/java.lang.Thread.sleep(Native 
Method)
   [junit4]    >         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
   [junit4]    >   11) Thread[id=21335, name=ScheduledTrigger-5134-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   12) Thread[id=21342, name=searcherExecutor-5139-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   13) Thread[id=21329, 
name=zkConnectionManagerCallback-6375-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   14) Thread[id=21336, name=ScheduledTrigger-5134-thread-2, 
state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   15) Thread[id=21347, name=zkCallback-6374-thread-5, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([D2CC57DD4BE0EEF5]:0)
   [junit4] Completed [344/765 (1!)] on J2 in 30.90s, 1 test, 4 errors <<< 
FAILURES!

[...truncated 42185 lines...]
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