Build: https://jenkins.thetaphi.de/job/Lucene-Solr-master-Linux/21349/
Java: 64bit/jdk-10-ea+37 -XX:-UseCompressedOops -XX:+UseParallelGC

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

Error Message:
SolrCore.getOpenCount()==2

Stack Trace:
java.lang.RuntimeException: SolrCore.getOpenCount()==2
        at __randomizedtesting.SeedInfo.seed([F202FC04E006C69D]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:792)
        at 
org.apache.solr.cloud.AbstractZkTestCase.azt_afterClass(AbstractZkTestCase.java:147)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:897)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.base/java.lang.Thread.run(Thread.java:844)


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

Error Message:
SolrCore.getOpenCount()==2

Stack Trace:
java.lang.RuntimeException: SolrCore.getOpenCount()==2
        at __randomizedtesting.SeedInfo.seed([F202FC04E006C69D]:0)
        at org.apache.solr.util.TestHarness.close(TestHarness.java:379)
        at org.apache.solr.SolrTestCaseJ4.deleteCore(SolrTestCaseJ4.java:792)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:288)
        at jdk.internal.reflect.GeneratedMethodAccessor39.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=25253, name=ScheduledTrigger-5795-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=25254, name=Thread-5433, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@10-ea/java.lang.Object.wait(Native Method)         at 
java.base@10-ea/java.lang.Thread.join(Thread.java:1353)         at 
java.base@10-ea/java.lang.Thread.join(Thread.java:1427)         at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
         at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
         at 
app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)    3) 
Thread[id=25244, name=watches-8843-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=25248, name=searcherExecutor-5800-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=25259, name=zkCallback-8841-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=25233, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)    7) 
Thread[id=25255, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:45435, 
state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@10-ea/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@10-ea/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:89)   
      at java.base@10-ea/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:100)  
       at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=25232, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-SendThread(127.0.0.1:45435),
 state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@10-ea/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@10-ea/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:89)   
      at java.base@10-ea/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:100)  
       at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)    9) 
Thread[id=25251, name=zkCallback-8841-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=25249, name=coreZkRegister-5790-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=25258, name=ProcessThread(sid:0 cport:45435):, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
   12) Thread[id=25234, name=zkConnectionManagerCallback-8842-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   13) 
Thread[id=25238, 
name=OverseerAutoScalingTriggerThread-99416085830303747-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=25256, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@10-ea/java.lang.Object.wait(Native 
Method)         at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
   15) Thread[id=25237, 
name=OverseerCollectionConfigSetProcessor-99416085830303747-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:235)
         at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   16) 
Thread[id=25236, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   17) 
Thread[id=25250, name=zkCallback-8841-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   18) 
Thread[id=25241, name=ScheduledTrigger-5795-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   19) 
Thread[id=25240, name=ScheduledTrigger-5795-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   20) 
Thread[id=25228, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   21) 
Thread[id=25235, 
name=OverseerStateUpdate-99416085830303747-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)  
       at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   22) 
Thread[id=25252, name=zkCallback-8841-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   23) 
Thread[id=25243, name=Thread-5432, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@10-ea/java.lang.Object.wait(Native Method)         at 
java.base@10-ea/java.lang.Object.wait(Object.java:328)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)   24) 
Thread[id=25245, name=zkCallback-8841-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   25) 
Thread[id=25246, name=ScheduledTrigger-5795-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   26) 
Thread[id=25227, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   27) 
Thread[id=25239, name=zkCallback-8841-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/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=25253, name=ScheduledTrigger-5795-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=25254, name=Thread-5433, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Object.wait(Native Method)
        at java.base@10-ea/java.lang.Thread.join(Thread.java:1353)
        at java.base@10-ea/java.lang.Thread.join(Thread.java:1427)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
        at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
        at app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)
   3) Thread[id=25244, name=watches-8843-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=25248, name=searcherExecutor-5800-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=25259, name=zkCallback-8841-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=25233, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)
   7) Thread[id=25255, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:45435, 
state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@10-ea/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@10-ea/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@10-ea/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:89)
        at java.base@10-ea/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:100)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=25232, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-SendThread(127.0.0.1:45435),
 state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@10-ea/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@10-ea/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@10-ea/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@10-ea/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:89)
        at java.base@10-ea/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:100)
        at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
   9) Thread[id=25251, name=zkCallback-8841-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=25249, name=coreZkRegister-5790-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=25258, name=ProcessThread(sid:0 cport:45435):, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
  12) Thread[id=25234, name=zkConnectionManagerCallback-8842-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  13) Thread[id=25238, 
name=OverseerAutoScalingTriggerThread-99416085830303747-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=25256, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Object.wait(Native Method)
        at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
  15) Thread[id=25237, 
name=OverseerCollectionConfigSetProcessor-99416085830303747-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:235)
        at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  16) Thread[id=25236, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  17) Thread[id=25250, name=zkCallback-8841-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  18) Thread[id=25241, name=ScheduledTrigger-5795-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  19) Thread[id=25240, name=ScheduledTrigger-5795-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  20) Thread[id=25228, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  21) Thread[id=25235, 
name=OverseerStateUpdate-99416085830303747-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  22) Thread[id=25252, name=zkCallback-8841-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  23) Thread[id=25243, name=Thread-5432, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Object.wait(Native Method)
        at java.base@10-ea/java.lang.Object.wait(Object.java:328)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
  24) Thread[id=25245, name=zkCallback-8841-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  25) Thread[id=25246, name=ScheduledTrigger-5795-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  26) Thread[id=25227, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  27) Thread[id=25239, name=zkCallback-8841-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([F202FC04E006C69D]: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=25253, name=ScheduledTrigger-5795-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=25250, name=zkCallback-8841-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=25244, name=watches-8843-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=25248, name=searcherExecutor-5800-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=25259, name=zkCallback-8841-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=25241, name=ScheduledTrigger-5795-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=25240, name=ScheduledTrigger-5795-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=25232, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-SendThread(127.0.0.1:45435),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]         at 
java.base@10-ea/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)    9) 
Thread[id=25251, name=zkCallback-8841-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=25249, name=coreZkRegister-5790-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=25252, name=zkCallback-8841-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=25243, name=Thread-5432, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@10-ea/java.lang.Object.wait(Native Method)         at 
java.base@10-ea/java.lang.Object.wait(Object.java:328)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)   13) 
Thread[id=25234, name=zkConnectionManagerCallback-8842-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=25245, name=zkCallback-8841-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=25246, name=ScheduledTrigger-5795-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/java.lang.Thread.run(Thread.java:844)   16) 
Thread[id=25239, name=zkCallback-8841-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
         at java.base@10-ea/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=25253, name=ScheduledTrigger-5795-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=25250, name=zkCallback-8841-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=25244, name=watches-8843-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=25248, name=searcherExecutor-5800-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=25259, name=zkCallback-8841-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=25241, name=ScheduledTrigger-5795-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=25240, name=ScheduledTrigger-5795-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=25232, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-SendThread(127.0.0.1:45435),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
   9) Thread[id=25251, name=zkCallback-8841-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=25249, name=coreZkRegister-5790-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=25252, name=zkCallback-8841-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=25243, name=Thread-5432, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/java.lang.Object.wait(Native Method)
        at java.base@10-ea/java.lang.Object.wait(Object.java:328)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
  13) Thread[id=25234, name=zkConnectionManagerCallback-8842-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=25245, name=zkCallback-8841-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=25246, name=ScheduledTrigger-5795-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
        at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
  16) Thread[id=25239, name=zkCallback-8841-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
        at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base@10-ea/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([F202FC04E006C69D]:0)




Build Log:
[...truncated 12549 lines...]
   [junit4] Suite: org.apache.solr.cloud.BasicZkTest
   [junit4]   2> 1450875 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.SolrTestCaseJ4 
SecureRandom sanity checks: test.solr.allowed.securerandom=null & 
java.security.egd=file:/dev/./urandom
   [junit4]   2> Creating dataDir: 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/J1/temp/solr.cloud.BasicZkTest_F202FC04E006C69D-001/init-core-data-001
   [junit4]   2> 1450875 WARN  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.SolrTestCaseJ4 
startTrackingSearchers: numOpens=88 numCloses=88
   [junit4]   2> 1450875 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.SolrTestCaseJ4 
Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=false
   [junit4]   2> 1450876 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.SolrTestCaseJ4 
Randomized ssl (true) and clientAuth (true) via: 
@org.apache.solr.util.RandomizeSSL(reason="", ssl=0.0/0.0, value=0.0/0.0, 
clientAuth=0.0/0.0)
   [junit4]   2> 1450877 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.c.ZkTestServer 
STARTING ZK TEST SERVER
   [junit4]   2> 1450877 INFO  (Thread-5431) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1450877 INFO  (Thread-5431) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1450878 ERROR (Thread-5431) [    ] 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> 1450977 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.c.ZkTestServer 
start zk server on port:45435
   [junit4]   2> 1450978 INFO  (zkConnectionManagerCallback-8834-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1450980 INFO  (zkConnectionManagerCallback-8836-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1450982 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/solrconfig.xml
 to /configs/conf1/solrconfig.xml
   [junit4]   2> 1450983 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/schema.xml
 to /configs/conf1/schema.xml
   [junit4]   2> 1450984 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/solrconfig.snippet.randomindexconfig.xml
 to /configs/conf1/solrconfig.snippet.randomindexconfig.xml
   [junit4]   2> 1450985 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/stopwords.txt
 to /configs/conf1/stopwords.txt
   [junit4]   2> 1450985 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/protwords.txt
 to /configs/conf1/protwords.txt
   [junit4]   2> 1450986 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/currency.xml
 to /configs/conf1/currency.xml
   [junit4]   2> 1450986 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/enumsConfig.xml
 to /configs/conf1/enumsConfig.xml
   [junit4]   2> 1450987 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/open-exchange-rates.json
 to /configs/conf1/open-exchange-rates.json
   [junit4]   2> 1450987 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/mapping-ISOLatin1Accent.txt
 to /configs/conf1/mapping-ISOLatin1Accent.txt
   [junit4]   2> 1450988 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/old_synonyms.txt
 to /configs/conf1/old_synonyms.txt
   [junit4]   2> 1450988 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.AbstractZkTestCase put 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/conf/synonyms.txt
 to /configs/conf1/synonyms.txt
   [junit4]   2> 1450989 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.SolrTestCaseJ4 
####initCore
   [junit4]   2> 1450989 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] 
o.a.s.c.SolrResourceLoader [null] Added 2 libs to classloader, from paths: 
[/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/lib,
 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/lib/classes]
   [junit4]   2> 1451008 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.c.SolrConfig 
Using Lucene MatchVersion: 8.0.0
   [junit4]   2> 1451021 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.s.IndexSchema 
[null] Schema name=test
   [junit4]   2> 1451100 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.s.IndexSchema 
Loaded schema test/1.0 with uniqueid field id
   [junit4]   2> 1451111 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [    ] o.a.s.c.ZkContainer 
Zookeeper client=127.0.0.1:45435/solr
   [junit4]   2> 1451112 INFO  (zkConnectionManagerCallback-8840-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1451116 INFO  
(zkConnectionManagerCallback-8842-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 1451149 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1451149 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 88.99.242.108:8983_
   [junit4]   2> 1451149 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.Overseer Overseer 
(id=99416085830303747-88.99.242.108:8983_-n_0000000000) starting
   [junit4]   2> 1451152 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.c.ZkController Register node as live in 
ZooKeeper:/live_nodes/88.99.242.108:8983_
   [junit4]   2> 1451153 INFO  
(zkCallback-8841-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_    ] o.a.s.c.c.ZkStateReader Updated live nodes from 
ZooKeeper... (0) -> (1)
   [junit4]   2> 1451190 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.node' (registry 'solr.node') 
enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@160772a8
   [junit4]   2> 1451197 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jvm' (registry 'solr.jvm') 
enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@160772a8
   [junit4]   2> 1451197 INFO  
(SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker) [n:88.99.242.108:8983_    ] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jetty' (registry 
'solr.jetty') enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@160772a8
   [junit4]   2> 1451198 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_    ] o.a.s.c.TransientSolrCoreCacheDefault Allocating 
transient cache for 2147483647 transient cores
   [junit4]   2> 1452202 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.SolrResourceLoader [null] Added 2 libs to classloader, from paths: 
[/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/lib,
 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1/lib/classes]
   [junit4]   2> 1452220 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.SolrConfig Using Lucene MatchVersion: 8.0.0
   [junit4]   2> 1452238 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.IndexSchema [collection1] Schema name=test
   [junit4]   2> 1452296 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.s.IndexSchema Loaded schema test/1.0 with uniqueid field id
   [junit4]   2> 1452304 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.c.CoreContainer Creating SolrCore 'collection1' using configuration from 
collection collection1, trusted=true
   [junit4]   2> 1452304 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.m.r.SolrJmxReporter JMX monitoring for 
'solr.core.collection1.shard1.88.99.242.108:8983__collection1' (registry 
'solr.core.collection1.shard1.88.99.242.108:8983__collection1') enabled at 
server: com.sun.jmx.mbeanserver.JmxMBeanServer@160772a8
   [junit4]   2> 1452304 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.c.SolrCore 
solr.RecoveryStrategy.Builder
   [junit4]   2> 1452305 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.c.SolrCore 
[[collection1] ] Opening new SolrCore at 
[/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/core/src/test-files/solr/collection1],
 
dataDir=[/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/J1/temp/solr.cloud.BasicZkTest_F202FC04E006C69D-001/init-core-data-001/]
   [junit4]   2> 1452306 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.RandomMergePolicy RandomMergePolicy wrapping class 
org.apache.lucene.index.LogByteSizeMergePolicy: [LogByteSizeMergePolicy: 
minMergeSize=1677721, mergeFactor=26, maxMergeSize=2147483648, 
maxMergeSizeForForcedMerge=9223372036854775807, calibrateSizeByDeletes=false, 
maxMergeDocs=2147483647, maxCFSSegmentSizeMB=8.796093022207999E12, 
noCFSRatio=0.39483876803889195]
   [junit4]   2> 1452345 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.UpdateHandler Using UpdateLog implementation: 
org.apache.solr.update.UpdateLog
   [junit4]   2> 1452345 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] o.a.s.u.UpdateLog 
Initializing UpdateLog: dataDir= defaultSyncLevel=FLUSH numRecordsToKeep=100 
maxNumLogsToKeep=10 numVersionBuckets=65536
   [junit4]   2> 1452346 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.CommitTracker Hard AutoCommit: disabled
   [junit4]   2> 1452346 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.CommitTracker Soft AutoCommit: disabled
   [junit4]   2> 1452346 INFO  
(coreLoadExecutor-5799-thread-1-processing-n:88.99.242.108:8983_) 
[n:88.99.242.108:8983_ c:collection1 s:shard1  x:collection1] 
o.a.s.u.RandomMergePolicy RandomMergePolicy wrapping class 
org.apache.lucene.index.LogByteSizeMergePolicy: [LogByteSizeMergePolicy: 
minMergeSize=1677721, mergeFactor=45, maxMergeSize=2147483648, 
maxMergeSizeForForcedMerge=9223372036854775807, calibrateSizeByDeletes=false, 
maxMergeDocs=2147483647, maxCFSSegmentSizeM

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

ject.awaitNanos(AbstractQueuedSynchronizer.java:2117)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1182)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >    8) Thread[id=25232, 
name=SUITE-BasicZkTest-seed#[F202FC04E006C69D]-worker-SendThread(127.0.0.1:45435),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@10-ea/java.lang.Thread.sleep(Native 
Method)
   [junit4]    >         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
   [junit4]    >    9) Thread[id=25251, name=zkCallback-8841-thread-4, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   10) Thread[id=25249, name=coreZkRegister-5790-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   11) Thread[id=25252, name=zkCallback-8841-thread-5, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   12) Thread[id=25243, name=Thread-5432, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@10-ea/java.lang.Object.wait(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.lang.Object.wait(Object.java:328)
   [junit4]    >         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
   [junit4]    >   13) Thread[id=25234, 
name=zkConnectionManagerCallback-8842-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   14) Thread[id=25245, name=zkCallback-8841-thread-2, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   15) Thread[id=25246, name=ScheduledTrigger-5795-thread-3, 
state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2075)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1177)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:899)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   16) Thread[id=25239, name=zkCallback-8841-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@10-ea/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1060)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
   [junit4]    >         at 
java.base@10-ea/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
   [junit4]    >         at 
java.base@10-ea/java.lang.Thread.run(Thread.java:844)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([F202FC04E006C69D]:0)
   [junit4] Completed [273/768 (1!)] on J1 in 31.12s, 1 test, 4 errors <<< 
FAILURES!

[...truncated 42458 lines...]
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