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6 threads leaked from SUITE scope at org.apache.solr.cloud.SaslZkACLProviderTest:    1) Thread[id=666, name=apacheds, state=WAITING, group=TGRP-SaslZkACLProviderTest] at java.lang.Object.wait(java.base@9-ea/Native Method) at java.lang.Object.wait
com.carrotsearch.randomizedtesting.ThreadLeakError: 6 threads leaked from SUITE scope at org.apache.solr.cloud.SaslZkACLProviderTest: 
   1) Thread[id=666, name=apacheds, state=WAITING, group=TGRP-SaslZkACLProviderTest]
 at java.lang.Object.wait(java.base@9-ea/Native Method)
 at java.lang.Object.wait(java.base@9-ea/Object.java:516)
 at java.util.TimerThread.mainLoop(java.base@9-ea/Timer.java:526)
 at java.util.TimerThread.run(java.base@9-ea/Timer.java:505)
   2) Thread[id=670, name=changePwdReplayCache.data, state=TIMED_WAITING, group=TGRP-SaslZkACLProviderTest]
 at jdk.internal.misc.Unsafe.park(java.base@9-ea/Native Method)
 at java.util.concurrent.locks.LockSupport.parkNanos(java.base@9-ea/LockSupport.java:230)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(java.base@9-ea/AbstractQueuedSynchronizer.java:2106)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:1131)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:848)
 at java.util.concurrent.ThreadPoolExecutor.getTask(java.base@9-ea/ThreadPoolExecutor.java:1083)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@9-ea/ThreadPoolExecutor.java:1143)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@9-ea/ThreadPoolExecutor.java:632)
 at java.lang.Thread.run(java.base@9-ea/Thread.java:804)
   3) Thread[id=669, name=groupCache.data, state=TIMED_WAITING, group=TGRP-SaslZkACLProviderTest]
 at jdk.internal.misc.Unsafe.park(java.base@9-ea/Native Method)
 at java.util.concurrent.locks.LockSupport.parkNanos(java.base@9-ea/LockSupport.java:230)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(java.base@9-ea/AbstractQueuedSynchronizer.java:2106)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:1131)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:848)
 at java.util.concurrent.ThreadPoolExecutor.getTask(java.base@9-ea/ThreadPoolExecutor.java:1083)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@9-ea/ThreadPoolExecutor.java:1143)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@9-ea/ThreadPoolExecutor.java:632)
 at java.lang.Thread.run(java.base@9-ea/Thread.java:804)
   4) Thread[id=668, name=kdcReplayCache.data, state=TIMED_WAITING, group=TGRP-SaslZkACLProviderTest]
 at jdk.internal.misc.Unsafe.park(java.base@9-ea/Native Method)
 at java.util.concurrent.locks.LockSupport.parkNanos(java.base@9-ea/LockSupport.java:230)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(java.base@9-ea/AbstractQueuedSynchronizer.java:2106)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:1131)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:848)
 at java.util.concurrent.ThreadPoolExecutor.getTask(java.base@9-ea/ThreadPoolExecutor.java:1083)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@9-ea/ThreadPoolExecutor.java:1143)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@9-ea/ThreadPoolExecutor.java:632)
 at java.lang.Thread.run(java.base@9-ea/Thread.java:804)
   5) Thread[id=667, name=ou=system.data, state=TIMED_WAITING, group=TGRP-SaslZkACLProviderTest]
 at jdk.internal.misc.Unsafe.park(java.base@9-ea/Native Method)
 at java.util.concurrent.locks.LockSupport.parkNanos(java.base@9-ea/LockSupport.java:230)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(java.base@9-ea/AbstractQueuedSynchronizer.java:2106)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:1131)
 at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@9-ea/ScheduledThreadPoolExecutor.java:848)
 at java.util.concurrent.ThreadPoolExecutor.getTask(java.base@9-ea/ThreadPoolExecutor.java:1083)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@9-ea/ThreadPoolExecutor.java:1143)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@9-ea/ThreadPoolExecutor.java:632)
 at java.lang.Thread.run(java.base@9-ea/Thread.java:804)
   6) Thread[id=671, name=NioSocketAcceptor-1, state=RUNNABLE, group=TGRP-SaslZkACLProviderTest]
 at sun.nio.ch.EPollArrayWrapper.epollWait(java.base@9-ea/Native Method)
 at sun.nio.ch.EPollArrayWrapper.poll(java.base@9-ea/EPollArrayWrapper.java:269)
 at sun.nio.ch.EPollSelectorImpl.doSelect(java.base@9-ea/EPollSelectorImpl.java:92)
 at sun.nio.ch.SelectorImpl.lockAndDoSelect(java.base@9-ea/SelectorImpl.java:86)
 at sun.nio.ch.SelectorImpl.select(java.base@9-ea/SelectorImpl.java:97)
 at sun.nio.ch.SelectorImpl.select(java.base@9-ea/SelectorImpl.java:101)	at org.apache.mina.transport.socket.nio.NioSocketAcceptor.select(NioSocketAcceptor.java:289)	at org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:404)	at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:65)