Build: https://jenkins.thetaphi.de/job/Lucene-Solr-master-Linux/20661/
Java: 64bit/jdk-9 -XX:+UseCompressedOops -XX:+UseSerialGC --illegal-access=deny

5 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([E5C1B423C4CDC882]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:774)
        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([E5C1B423C4CDC882]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:774)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:287)
        at jdk.internal.reflect.GeneratedMethodAccessor63.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:
27 threads leaked from SUITE scope at org.apache.solr.cloud.BasicZkTest:     1) 
Thread[id=16502, name=zkCallback-3454-thread-7, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=16503, name=ScheduledTrigger-6749-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=16505, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:37729, 
state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at 
java.base@9/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)       
  at 
java.base@9/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)    
     at 
java.base@9/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)       
  at java.base@9/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         
at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=16504, name=Thread-3555, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9/java.lang.Object.wait(Native Method)         at 
java.base@9/java.lang.Thread.join(Thread.java:1353)         at 
java.base@9/java.lang.Thread.join(Thread.java:1427)         at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
         at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:309)
         at 
app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:490)    5) 
Thread[id=16498, name=zkCallback-3454-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=16485, 
name=OverseerStateUpdate-98814942648008707-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:183) 
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:156) 
        at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:186)  
       at java.base@9/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=16501, name=zkCallback-3454-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=16478, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@9/java.lang.Thread.sleep(Native 
Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    9) 
Thread[id=16499, name=zkCallback-3454-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=16489, name=ScheduledTrigger-6749-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=16496, name=coreZkRegister-6744-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=16486, 
name=OverseerCollectionConfigSetProcessor-98814942648008707-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:397)
         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/java.lang.Thread.run(Thread.java:844)   13) 
Thread[id=16493, name=ScheduledTrigger-6749-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=16495, name=searcherExecutor-6754-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=16492, name=watches-3455-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   16) 
Thread[id=16477, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@9/java.lang.Thread.sleep(Native 
Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   17) 
Thread[id=16483, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)   18) 
Thread[id=16487, 
name=OverseerAutoScalingTriggerThread-98814942648008707-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:168)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   19) 
Thread[id=16488, name=ScheduledTrigger-6749-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   20) 
Thread[id=16482, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-SendThread(127.0.0.1:37729),
 state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at 
java.base@9/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)       
  at 
java.base@9/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)    
     at 
java.base@9/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)       
  at java.base@9/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         
at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)   21) 
Thread[id=16508, name=ProcessThread(sid:0 cport:37729):, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
   22) Thread[id=16484, name=zkCallback-3454-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   23) 
Thread[id=16509, name=zkCallback-3454-thread-8, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   24) 
Thread[id=16491, name=Thread-3554, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9/java.lang.Object.wait(Native Method)         at 
java.base@9/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1675)   25) 
Thread[id=16500, name=zkCallback-3454-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   26) 
Thread[id=16506, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@9/java.lang.Object.wait(Native 
Method)         at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
   27) Thread[id=16497, name=zkCallback-3454-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 27 threads leaked from 
SUITE scope at org.apache.solr.cloud.BasicZkTest: 
   1) Thread[id=16502, name=zkCallback-3454-thread-7, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=16503, name=ScheduledTrigger-6749-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=16505, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:37729, 
state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=16504, name=Thread-3555, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Object.wait(Native Method)
        at java.base@9/java.lang.Thread.join(Thread.java:1353)
        at java.base@9/java.lang.Thread.join(Thread.java:1427)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
        at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:309)
        at app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:490)
   5) Thread[id=16498, name=zkCallback-3454-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=16485, 
name=OverseerStateUpdate-98814942648008707-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:183)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:156)
        at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:186)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=16501, name=zkCallback-3454-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=16478, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   9) Thread[id=16499, name=zkCallback-3454-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=16489, name=ScheduledTrigger-6749-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=16496, name=coreZkRegister-6744-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=16486, 
name=OverseerCollectionConfigSetProcessor-98814942648008707-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:397)
        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/java.lang.Thread.run(Thread.java:844)
  13) Thread[id=16493, name=ScheduledTrigger-6749-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=16495, name=searcherExecutor-6754-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=16492, name=watches-3455-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  16) Thread[id=16477, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  17) Thread[id=16483, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)
  18) Thread[id=16487, 
name=OverseerAutoScalingTriggerThread-98814942648008707-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:168)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  19) Thread[id=16488, name=ScheduledTrigger-6749-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  20) Thread[id=16482, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-SendThread(127.0.0.1:37729),
 state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
  21) Thread[id=16508, name=ProcessThread(sid:0 cport:37729):, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
  22) Thread[id=16484, name=zkCallback-3454-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  23) Thread[id=16509, name=zkCallback-3454-thread-8, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  24) Thread[id=16491, name=Thread-3554, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Object.wait(Native Method)
        at java.base@9/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1675)
  25) Thread[id=16500, name=zkCallback-3454-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  26) Thread[id=16506, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Object.wait(Native Method)
        at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
  27) Thread[id=16497, name=zkCallback-3454-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([E5C1B423C4CDC882]: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=16496, name=coreZkRegister-6744-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=16502, name=zkCallback-3454-thread-7, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=16493, name=ScheduledTrigger-6749-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=16503, name=ScheduledTrigger-6749-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=16495, name=searcherExecutor-6754-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=16492, name=watches-3455-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=16488, name=ScheduledTrigger-6749-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=16482, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-SendThread(127.0.0.1:37729),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]         at 
java.base@9/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1051)    9) 
Thread[id=16498, name=zkCallback-3454-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=16484, name=zkCallback-3454-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=16509, name=zkCallback-3454-thread-8, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=16491, name=Thread-3554, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9/java.lang.Object.wait(Native Method)         at 
java.base@9/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1675)   13) 
Thread[id=16500, name=zkCallback-3454-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=16501, name=zkCallback-3454-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=16497, name=zkCallback-3454-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   16) 
Thread[id=16499, name=zkCallback-3454-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/java.lang.Thread.run(Thread.java:844)   17) 
Thread[id=16489, name=ScheduledTrigger-6749-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)   
      at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9/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=16496, name=coreZkRegister-6744-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=16502, name=zkCallback-3454-thread-7, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=16493, name=ScheduledTrigger-6749-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=16503, name=ScheduledTrigger-6749-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=16495, name=searcherExecutor-6754-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=16492, name=watches-3455-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=16488, name=ScheduledTrigger-6749-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=16482, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-SendThread(127.0.0.1:37729),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1051)
   9) Thread[id=16498, name=zkCallback-3454-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=16484, name=zkCallback-3454-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=16509, name=zkCallback-3454-thread-8, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=16491, name=Thread-3554, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9/java.lang.Object.wait(Native Method)
        at java.base@9/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1675)
  13) Thread[id=16500, name=zkCallback-3454-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=16501, name=zkCallback-3454-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=16497, name=zkCallback-3454-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  16) Thread[id=16499, name=zkCallback-3454-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
  17) Thread[id=16489, name=ScheduledTrigger-6749-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([E5C1B423C4CDC882]:0)


FAILED:  org.apache.solr.cloud.autoscaling.SystemLogListenerTest.test

Error Message:
wrong number of events added to .system expected:<9> but was:<10>

Stack Trace:
java.lang.AssertionError: wrong number of events added to .system expected:<9> 
but was:<10>
        at 
__randomizedtesting.SeedInfo.seed([E5C1B423C4CDC882:6D958BF96A31A57A]:0)
        at org.junit.Assert.fail(Assert.java:93)
        at org.junit.Assert.failNotEquals(Assert.java:647)
        at org.junit.Assert.assertEquals(Assert.java:128)
        at org.junit.Assert.assertEquals(Assert.java:472)
        at 
org.apache.solr.cloud.autoscaling.SystemLogListenerTest.test(SystemLogListenerTest.java:165)
        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$8.evaluate(RandomizedRunner.java:934)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
        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)




Build Log:
[...truncated 12619 lines...]
   [junit4] Suite: org.apache.solr.cloud.autoscaling.SystemLogListenerTest
   [junit4]   2> Creating dataDir: 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/J0/temp/solr.cloud.autoscaling.SystemLogListenerTest_E5C1B423C4CDC882-001/init-core-data-001
   [junit4]   2> 1367175 WARN  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=74 numCloses=74
   [junit4]   2> 1367175 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=false
   [junit4]   2> 1367176 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Randomized ssl (false) and clientAuth (false) via: 
@org.apache.solr.util.RandomizeSSL(reason="", ssl=0.0/0.0, value=0.0/0.0, 
clientAuth=0.0/0.0)
   [junit4]   2> 1367176 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: 
test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4]   2> 1367176 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.c.MiniSolrCloudCluster Starting cluster of 3 servers in 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/J0/temp/solr.cloud.autoscaling.SystemLogListenerTest_E5C1B423C4CDC882-001/tempDir-001
   [junit4]   2> 1367177 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1367178 INFO  (Thread-3123) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1367178 INFO  (Thread-3123) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1367179 ERROR (Thread-3123) [    ] 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> 1367278 INFO  
(SUITE-SystemLogListenerTest-seed#[E5C1B423C4CDC882]-worker) [    ] 
o.a.s.c.ZkTestServer start zk server on port:36321
   [junit4]   2> 1367282 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.e.j.s.Server jetty-9.3.20.v20170531
   [junit4]   2> 1367285 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.e.j.s.Server jetty-9.3.20.v20170531
   [junit4]   2> 1367285 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.e.j.s.Server jetty-9.3.20.v20170531
   [junit4]   2> 1367289 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@61349da7{/solr,null,AVAILABLE}
   [junit4]   2> 1367290 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@bb6e2db{HTTP/1.1,[http/1.1]}{127.0.0.1:39095}
   [junit4]   2> 1367290 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.e.j.s.Server Started @1369464ms
   [junit4]   2> 1367290 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=39095}
   [junit4]   2> 1367290 ERROR (jetty-launcher-3109-thread-2) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 1367290 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr™ version 
8.0.0
   [junit4]   2> 1367291 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 1367291 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null, Default config 
dir: null
   [junit4]   2> 1367291 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2017-10-12T08:14:03.181079Z
   [junit4]   2> 1367305 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter solr.xml found in ZooKeeper. Loading...
   [junit4]   2> 1367306 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@7fc68163{/solr,null,AVAILABLE}
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@7d16a651{HTTP/1.1,[http/1.1]}{127.0.0.1:33323}
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.e.j.s.Server Started @1369493ms
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=33323}
   [junit4]   2> 1367319 ERROR (jetty-launcher-3109-thread-3) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr™ version 
8.0.0
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null, Default config 
dir: null
   [junit4]   2> 1367319 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2017-10-12T08:14:03.209832Z
   [junit4]   2> 1367323 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@5247a7db{/solr,null,AVAILABLE}
   [junit4]   2> 1367323 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@7e0ecb83{HTTP/1.1,[http/1.1]}{127.0.0.1:38967}
   [junit4]   2> 1367323 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.e.j.s.Server Started @1369497ms
   [junit4]   2> 1367323 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=38967}
   [junit4]   2> 1367324 ERROR (jetty-launcher-3109-thread-1) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 1367324 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr™ version 
8.0.0
   [junit4]   2> 1367324 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 1367324 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null, Default config 
dir: null
   [junit4]   2> 1367324 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2017-10-12T08:14:03.214331Z
   [junit4]   2> 1367324 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter solr.xml found in ZooKeeper. Loading...
   [junit4]   2> 1367331 INFO  (jetty-launcher-3109-thread-2) [    ] 
o.a.s.c.ZkContainer Zookeeper client=127.0.0.1:36321/solr
   [junit4]   2> 1367337 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter solr.xml found in ZooKeeper. Loading...
   [junit4]   2> 1367338 INFO  (jetty-launcher-3109-thread-3) [    ] 
o.a.s.c.ZkContainer Zookeeper client=127.0.0.1:36321/solr
   [junit4]   2> 1367356 INFO  (jetty-launcher-3109-thread-1) [    ] 
o.a.s.c.ZkContainer Zookeeper client=127.0.0.1:36321/solr
   [junit4]   2> 1367369 INFO  (jetty-launcher-3

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

.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >    8) Thread[id=16482, 
name=SUITE-BasicZkTest-seed#[E5C1B423C4CDC882]-worker-SendThread(127.0.0.1:37729),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/java.lang.Thread.sleep(Native Method)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1051)
   [junit4]    >    9) Thread[id=16498, name=zkCallback-3454-thread-3, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   10) Thread[id=16484, name=zkCallback-3454-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   11) Thread[id=16509, name=zkCallback-3454-thread-8, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   12) Thread[id=16491, name=Thread-3554, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/java.lang.Object.wait(Native Method)
   [junit4]    >         at java.base@9/java.lang.Object.wait(Object.java:516)
   [junit4]    >         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1675)
   [junit4]    >   13) Thread[id=16500, name=zkCallback-3454-thread-5, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   14) Thread[id=16501, name=zkCallback-3454-thread-6, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   15) Thread[id=16497, name=zkCallback-3454-thread-2, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   16) Thread[id=16499, name=zkCallback-3454-thread-4, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   17) Thread[id=16489, name=ScheduledTrigger-6749-thread-2, 
state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9/jdk.internal.misc.Unsafe.park(Native 
Method)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at java.base@9/java.lang.Thread.run(Thread.java:844)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([E5C1B423C4CDC882]:0)
   [junit4] Completed [386/745 (2!)] on J0 in 31.29s, 1 test, 4 errors <<< 
FAILURES!

[...truncated 40869 lines...]
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