Build: https://jenkins.thetaphi.de/job/Lucene-Solr-master-Linux/21352/
Java: 64bit/jdk-9.0.1 -XX:-UseCompressedOops -XX:+UseG1GC

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

Error Message:
SolrCore.getOpenCount()==2

Stack Trace:
java.lang.RuntimeException: SolrCore.getOpenCount()==2
        at __randomizedtesting.SeedInfo.seed([C5ABA40195487ADB]: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([C5ABA40195487ADB]: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.GeneratedMethodAccessor131.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=12082, name=zkCallback-2085-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=12078, 
name=OverseerStateUpdate-99418034188582915-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)  
       at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=12091, name=coreZkRegister-4723-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=12070, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=12080, 
name=OverseerCollectionConfigSetProcessor-99418034188582915-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
         at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:246)
         at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=12097, name=Thread-3829, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9.0.1/java.lang.Object.wait(Native Method)         at 
java.base@9.0.1/java.lang.Thread.join(Thread.java:1353)         at 
java.base@9.0.1/java.lang.Thread.join(Thread.java:1427)         at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
         at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
         at 
app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)    7) 
Thread[id=12098, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:44311, 
state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)   
      at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)   
      at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=12093, name=zkCallback-2085-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    9) 
Thread[id=12096, name=ScheduledTrigger-4728-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=12083, name=ScheduledTrigger-4728-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=12075, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-SendThread(127.0.0.1:44311),
 state=RUNNABLE, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         
at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)   
      at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
         at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)   
      at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)   
      at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)   12) 
Thread[id=12086, name=Thread-3828, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9.0.1/java.lang.Object.wait(Native Method)         at 
java.base@9.0.1/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)   13) 
Thread[id=12087, name=watches-2087-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=12092, name=zkCallback-2085-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=12101, name=ProcessThread(sid:0 cport:44311):, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
   16) Thread[id=12095, name=ScheduledTrigger-4728-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   17) 
Thread[id=12071, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   18) 
Thread[id=12090, name=searcherExecutor-4733-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   19) 
Thread[id=12084, name=ScheduledTrigger-4728-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   20) 
Thread[id=12094, name=zkCallback-2085-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   21) 
Thread[id=12077, name=zkConnectionManagerCallback-2086-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   22) 
Thread[id=12099, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at java.base@9.0.1/java.lang.Object.wait(Native 
Method)         at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
   23) Thread[id=12081, 
name=OverseerAutoScalingTriggerThread-99418034188582915-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   24) 
Thread[id=12088, name=zkCallback-2085-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   25) 
Thread[id=12076, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)   26) 
Thread[id=12079, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   27) 
Thread[id=12102, name=zkCallback-2085-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 27 threads leaked from 
SUITE scope at org.apache.solr.cloud.BasicZkTest: 
   1) Thread[id=12082, name=zkCallback-2085-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=12078, 
name=OverseerStateUpdate-99418034188582915-88.99.242.108:8983_-n_0000000000, 
state=TIMED_WAITING, group=Overseer state updater.]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=12091, name=coreZkRegister-4723-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=12070, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=12080, 
name=OverseerCollectionConfigSetProcessor-99418034188582915-88.99.242.108:8983_-n_0000000000,
 state=TIMED_WAITING, group=Overseer collection creation process.]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
app//org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at 
app//org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:246)
        at 
app//org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=12097, name=Thread-3829, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Thread.join(Thread.java:1353)
        at java.base@9.0.1/java.lang.Thread.join(Thread.java:1427)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:297)
        at 
app//org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
        at app//org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)
   7) Thread[id=12098, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:44311, 
state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:173)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=12093, name=zkCallback-2085-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   9) Thread[id=12096, name=ScheduledTrigger-4728-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=12083, name=ScheduledTrigger-4728-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=12075, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-SendThread(127.0.0.1:44311),
 state=RUNNABLE, group=TGRP-BasicZkTest]
        at java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at 
java.base@9.0.1/sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:265)
        at 
java.base@9.0.1/sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at 
java.base@9.0.1/sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at java.base@9.0.1/sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at 
app//org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
  12) Thread[id=12086, name=Thread-3828, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
  13) Thread[id=12087, name=watches-2087-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=12092, name=zkCallback-2085-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=12101, name=ProcessThread(sid:0 cport:44311):, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:122)
  16) Thread[id=12095, name=ScheduledTrigger-4728-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  17) Thread[id=12071, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  18) Thread[id=12090, name=searcherExecutor-4733-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  19) Thread[id=12084, name=ScheduledTrigger-4728-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  20) Thread[id=12094, name=zkCallback-2085-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  21) Thread[id=12077, name=zkConnectionManagerCallback-2086-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  22) Thread[id=12099, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at 
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:146)
  23) Thread[id=12081, 
name=OverseerAutoScalingTriggerThread-99418034188582915-88.99.242.108:8983_-n_0000000000,
 state=WAITING, group=Overseer autoscaling triggers]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
app//org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:166)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  24) Thread[id=12088, name=zkCallback-2085-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  25) Thread[id=12076, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-EventThread, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:501)
  26) Thread[id=12079, name=Connection evictor, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  27) Thread[id=12102, name=zkCallback-2085-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
        at __randomizedtesting.SeedInfo.seed([C5ABA40195487ADB]: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=12087, name=watches-2087-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    2) 
Thread[id=12082, name=zkCallback-2085-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    3) 
Thread[id=12092, name=zkCallback-2085-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    4) 
Thread[id=12091, name=coreZkRegister-4723-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    5) 
Thread[id=12095, name=ScheduledTrigger-4728-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    6) 
Thread[id=12090, name=searcherExecutor-4733-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    7) 
Thread[id=12084, name=ScheduledTrigger-4728-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    8) 
Thread[id=12094, name=zkCallback-2085-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)    9) 
Thread[id=12077, name=zkConnectionManagerCallback-2086-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   10) 
Thread[id=12093, name=zkCallback-2085-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   11) 
Thread[id=12096, name=ScheduledTrigger-4728-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   12) 
Thread[id=12083, name=ScheduledTrigger-4728-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   13) 
Thread[id=12088, name=zkCallback-2085-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   14) 
Thread[id=12102, name=zkCallback-2085-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
         at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)   15) 
Thread[id=12075, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-SendThread(127.0.0.1:44311),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]         at 
java.base@9.0.1/java.lang.Thread.sleep(Native Method)         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)   16) 
Thread[id=12086, name=Thread-3828, state=WAITING, group=TGRP-BasicZkTest]       
  at java.base@9.0.1/java.lang.Object.wait(Native Method)         at 
java.base@9.0.1/java.lang.Object.wait(Object.java:516)         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   1) Thread[id=12087, name=watches-2087-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   2) Thread[id=12082, name=zkCallback-2085-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   3) Thread[id=12092, name=zkCallback-2085-thread-3, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   4) Thread[id=12091, name=coreZkRegister-4723-thread-1, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   5) Thread[id=12095, name=ScheduledTrigger-4728-thread-3, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   6) Thread[id=12090, name=searcherExecutor-4733-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   7) Thread[id=12084, name=ScheduledTrigger-4728-thread-2, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   8) Thread[id=12094, name=zkCallback-2085-thread-5, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   9) Thread[id=12077, name=zkConnectionManagerCallback-2086-thread-1, 
state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  10) Thread[id=12093, name=zkCallback-2085-thread-4, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  11) Thread[id=12096, name=ScheduledTrigger-4728-thread-4, state=WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  12) Thread[id=12083, name=ScheduledTrigger-4728-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
        at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  13) Thread[id=12088, name=zkCallback-2085-thread-2, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  14) Thread[id=12102, name=zkCallback-2085-thread-6, state=TIMED_WAITING, 
group=TGRP-BasicZkTest]
        at java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
        at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
        at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
  15) Thread[id=12075, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-SendThread(127.0.0.1:44311),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Thread.sleep(Native Method)
        at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
        at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
  16) Thread[id=12086, name=Thread-3828, state=WAITING, group=TGRP-BasicZkTest]
        at java.base@9.0.1/java.lang.Object.wait(Native Method)
        at java.base@9.0.1/java.lang.Object.wait(Object.java:516)
        at app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
        at __randomizedtesting.SeedInfo.seed([C5ABA40195487ADB]:0)


FAILED:  org.apache.solr.handler.admin.AutoscalingHistoryHandlerTest.testHistory

Error Message:
expected:<5> but was:<0>

Stack Trace:
java.lang.AssertionError: expected:<5> but was:<0>
        at 
__randomizedtesting.SeedInfo.seed([C5ABA40195487ADB:A85700FC2F0085DC]:0)
        at org.junit.Assert.fail(Assert.java:93)
        at org.junit.Assert.failNotEquals(Assert.java:647)
        at org.junit.Assert.assertEquals(Assert.java:128)
        at org.junit.Assert.assertEquals(Assert.java:472)
        at org.junit.Assert.assertEquals(Assert.java:456)
        at 
org.apache.solr.handler.admin.AutoscalingHistoryHandlerTest.testHistory(AutoscalingHistoryHandlerTest.java:274)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:934)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.base/java.lang.Thread.run(Thread.java:844)




Build Log:
[...truncated 11909 lines...]
   [junit4] Suite: org.apache.solr.handler.admin.AutoscalingHistoryHandlerTest
   [junit4]   2> 300874 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-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.handler.admin.AutoscalingHistoryHandlerTest_C5ABA40195487ADB-001/init-core-data-001
   [junit4]   2> 300875 WARN  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=76 numCloses=76
   [junit4]   2> 300875 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=false
   [junit4]   2> 300875 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Randomized ssl (false) 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> 300876 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.c.MiniSolrCloudCluster Starting cluster of 3 servers in 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/J1/temp/solr.handler.admin.AutoscalingHistoryHandlerTest_C5ABA40195487ADB-001/tempDir-001
   [junit4]   2> 300876 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 300876 INFO  (Thread-1212) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 300876 INFO  (Thread-1212) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 300877 ERROR (Thread-1212) [    ] 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> 300976 INFO  
(SUITE-AutoscalingHistoryHandlerTest-seed#[C5ABA40195487ADB]-worker) [    ] 
o.a.s.c.ZkTestServer start zk server on port:42815
   [junit4]   2> 300979 INFO  (zkConnectionManagerCallback-396-thread-1) [    ] 
o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 300983 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.Server jetty-9.4.8.v20171121, build timestamp: 
2017-11-21T18:27:37-03:00, git hash: 82b8fb23f757335bb3329d540ce37a2a2615f0a8
   [junit4]   2> 300983 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.Server jetty-9.4.8.v20171121, build timestamp: 
2017-11-21T18:27:37-03:00, git hash: 82b8fb23f757335bb3329d540ce37a2a2615f0a8
   [junit4]   2> 300983 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.Server jetty-9.4.8.v20171121, build timestamp: 
2017-11-21T18:27:37-03:00, git hash: 82b8fb23f757335bb3329d540ce37a2a2615f0a8
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.session DefaultSessionIdManager workerName=node0
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.session DefaultSessionIdManager workerName=node0
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.session No SessionScavenger set, using defaults
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.session No SessionScavenger set, using defaults
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.session DefaultSessionIdManager workerName=node0
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.session Scavenging every 600000ms
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.session No SessionScavenger set, using defaults
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.session Scavenging every 600000ms
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.session Scavenging every 600000ms
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@34f0754b{/solr,null,AVAILABLE}
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@1a7ca3eb{/solr,null,AVAILABLE}
   [junit4]   2> 300985 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.h.ContextHandler Started 
o.e.j.s.ServletContextHandler@40842f45{/solr,null,AVAILABLE}
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@7bd61e00{HTTP/1.1,[http/1.1]}{127.0.0.1:38267}
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@5026521f{HTTP/1.1,[http/1.1]}{127.0.0.1:40823}
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.AbstractConnector Started 
ServerConnector@74035aec{HTTP/1.1,[http/1.1]}{127.0.0.1:33131}
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-1) [    ] 
o.e.j.s.Server Started @302547ms
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-3) [    ] 
o.e.j.s.Server Started @302547ms
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-1) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=40823}
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-3) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=33131}
   [junit4]   2> 300986 INFO  (jetty-launcher-393-thread-2) [    ] 
o.e.j.s.Server Started @302547ms
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-2) [    ] 
o.a.s.c.s.e.JettySolrRunner Jetty properties: {hostContext=/solr, 
hostPort=38267}
   [junit4]   2> 300987 ERROR (jetty-launcher-393-thread-1) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 300987 ERROR (jetty-launcher-393-thread-3) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 300987 ERROR (jetty-launcher-393-thread-2) [    ] 
o.a.s.u.StartupLoggingUtils Missing Java Option solr.log.dir. Logging may be 
missing or incomplete.
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr? version 
8.0.0
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr? version 
8.0.0
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr? version 
8.0.0
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-3) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2018-01-26T19:57:45.557834Z
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-1) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2018-01-26T19:57:45.557894Z
   [junit4]   2> 300987 INFO  (jetty-launcher-393-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter / __| ___| |_ _   Starting in cloud mode on port null
   [junit4]   2> 300988 INFO  (jetty-launcher-393-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter \__ \/ _ \ | '_|  Install dir: null
   [junit4]   2> 300988 INFO  (jetty-launcher-393-thread-2) [    ] 
o.a.s.s.SolrDispatchFilter |___/\___/_|_|    Start time: 
2018-01-26T19:57:45.558703Z
   [junit4]   2> 300991 INFO  (zkConnectionManagerCallback-398-thread-1) [    ] 
o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 300991 INFO  (zkConnectionManagerCallback-400-thread-1) [    ] 
o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 300993 INFO  (zkConnectionManagerCallback-402-thread-1) [    ] 
o.a.s.c.c.Conn

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

.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >    9) Thread[id=12077, 
name=zkConnectionManagerCallback-2086-thread-1, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   10) Thread[id=12093, name=zkCallback-2085-thread-4, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   11) Thread[id=12096, name=ScheduledTrigger-4728-thread-4, 
state=WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2062)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1126)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   12) Thread[id=12083, name=ScheduledTrigger-4728-thread-1, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2104)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1131)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:848)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1092)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   13) Thread[id=12088, name=zkCallback-2085-thread-2, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   14) Thread[id=12102, name=zkCallback-2085-thread-6, 
state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at 
java.base@9.0.1/jdk.internal.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:462)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:361)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:937)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1091)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
   [junit4]    >         at 
java.base@9.0.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Thread.run(Thread.java:844)
   [junit4]    >   15) Thread[id=12075, 
name=SUITE-BasicZkTest-seed#[C5ABA40195487ADB]-worker-SendThread(127.0.0.1:44311),
 state=TIMED_WAITING, group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9.0.1/java.lang.Thread.sleep(Native 
Method)
   [junit4]    >         at 
app//org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:101)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:997)
   [junit4]    >         at 
app//org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)
   [junit4]    >   16) Thread[id=12086, name=Thread-3828, state=WAITING, 
group=TGRP-BasicZkTest]
   [junit4]    >         at java.base@9.0.1/java.lang.Object.wait(Native Method)
   [junit4]    >         at 
java.base@9.0.1/java.lang.Object.wait(Object.java:516)
   [junit4]    >         at 
app//org.apache.solr.core.CloserThread.run(CoreContainer.java:1728)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([C5ABA40195487ADB]:0)
   [junit4] Completed [475/770 (2!)] on J1 in 33.67s, 1 test, 4 errors <<< 
FAILURES!

[...truncated 918 lines...]
   [junit4] JVM J2: stdout was not empty, see: 
/home/jenkins/workspace/Lucene-Solr-master-Linux/solr/build/solr-core/test/temp/junit4-J2-20180126_195242_9783703658086974486197.sysout
   [junit4] >>> JVM J2 emitted unexpected output (verbatim) ----
   [junit4] java.lang.OutOfMemoryError: Java heap space
   [junit4] Dumping heap to 
/home/jenkins/workspace/Lucene-Solr-master-Linux/heapdumps/java_pid16874.hprof 
...
   [junit4] Heap dump file created [321004774 bytes in 0.403 secs]
   [junit4] <<< JVM J2: EOF ----

[...truncated 8632 lines...]
BUILD FAILED
/home/jenkins/workspace/Lucene-Solr-master-Linux/build.xml:836: The following 
error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-master-Linux/build.xml:788: Some of the 
tests produced a heap dump, but did not fail. Maybe a suppressed 
OutOfMemoryError? Dumps created:
* java_pid16874.hprof

Total time: 72 minutes 29 seconds
Build step 'Invoke Ant' marked build as failure
Archiving artifacts
[WARNINGS] Skipping publisher since build result is FAILURE
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any
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