[JENKINS] Lucene-Solr-8.11-MacOSX (64bit/hotspot/jdk-11.0.21) - Build # 283 - Still Unstable!

[Policeman Jenkins Server]

Build: https://jenkins.thetaphi.de/job/Lucene-Solr-8.11-MacOSX/283/
Java: 64bit/hotspot/jdk-11.0.21 -XX:-UseCompressedOops -XX:+UseConcMarkSweepGC

5 tests failed.
FAILED:  
junit.framework.TestSuite.org.apache.solr.cloud.api.collections.TestLocalFSCloudBackupRestore

Error Message:
ObjectTracker found 6 object(s) that were not released!!! 
[MockDirectoryWrapper, SolrCore, InternalHttpClient, MockDirectoryWrapper, 
MockDirectoryWrapper, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1255)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) 
 at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)  
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)   expected null, but 
was:<ObjectTracker found 6 object(s) that were not released!!! 
[MockDirectoryWrapper, SolrCore, InternalHttpClient, MockDirectoryWrapper, 
MockDirectoryWrapper, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1255)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) 
 at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)  
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  >

Stack Trace:
java.lang.AssertionError: ObjectTracker found 6 object(s) that were not 
released!!! [MockDirectoryWrapper, SolrCore, InternalHttpClient, 
MockDirectoryWrapper, MockDirectoryWrapper, InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1255)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

 expected null, but was:<ObjectTracker found 6 object(s) that were not 
released!!! [MockDirectoryWrapper, SolrCore, InternalHttpClient, 
MockDirectoryWrapper, MockDirectoryWrapper, InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1255)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

>
        at __randomizedtesting.SeedInfo.seed([83DEA822C923734C]:0)
        at org.junit.Assert.fail(Assert.java:89)
        at org.junit.Assert.failNotNull(Assert.java:756)
        at org.junit.Assert.assertNull(Assert.java:738)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:345)
        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:566)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:909)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base/java.lang.Thread.run(Thread.java:829)


FAILED:  
junit.framework.TestSuite.org.apache.solr.cloud.api.collections.TestLocalFSCloudBackupRestore

Error Message:
ObjectTracker found 4 object(s) that were not released!!! [InternalHttpClient, 
MockDirectoryWrapper, SolrCore, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)  at 
org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)   expected null, but 
was:<ObjectTracker found 4 object(s) that were not released!!! 
[InternalHttpClient, MockDirectoryWrapper, SolrCore, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)  at 
org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  >

Stack Trace:
java.lang.AssertionError: ObjectTracker found 4 object(s) that were not 
released!!! [InternalHttpClient, MockDirectoryWrapper, SolrCore, 
InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

 expected null, but was:<ObjectTracker found 4 object(s) that were not 
released!!! [InternalHttpClient, MockDirectoryWrapper, SolrCore, 
InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

>
        at __randomizedtesting.SeedInfo.seed([83DEA822C923734C]:0)
        at org.junit.Assert.fail(Assert.java:89)
        at org.junit.Assert.failNotNull(Assert.java:756)
        at org.junit.Assert.assertNull(Assert.java:738)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:345)
        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:566)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:909)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base/java.lang.Thread.run(Thread.java:829)


FAILED:  
junit.framework.TestSuite.org.apache.solr.cloud.api.collections.TestLocalFSCloudBackupRestore

Error Message:
ObjectTracker found 5 object(s) that were not released!!! 
[MockDirectoryWrapper, MockDirectoryWrapper, SolrCore, InternalHttpClient, 
InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)  
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)  at 
org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)   expected null, but 
was:<ObjectTracker found 5 object(s) that were not released!!! 
[MockDirectoryWrapper, MockDirectoryWrapper, SolrCore, InternalHttpClient, 
InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)  
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)  at 
org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  >

Stack Trace:
java.lang.AssertionError: ObjectTracker found 5 object(s) that were not 
released!!! [MockDirectoryWrapper, MockDirectoryWrapper, SolrCore, 
InternalHttpClient, InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

 expected null, but was:<ObjectTracker found 5 object(s) that were not 
released!!! [MockDirectoryWrapper, MockDirectoryWrapper, SolrCore, 
InternalHttpClient, InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:553)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:995)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:98)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:813)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1003)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:714)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:683)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:339)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

>
        at __randomizedtesting.SeedInfo.seed([83DEA822C923734C]:0)
        at org.junit.Assert.fail(Assert.java:89)
        at org.junit.Assert.failNotNull(Assert.java:756)
        at org.junit.Assert.assertNull(Assert.java:738)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:345)
        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:566)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:909)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base/java.lang.Thread.run(Thread.java:829)


FAILED:  
junit.framework.TestSuite.org.apache.solr.cloud.api.collections.TestLocalFSCloudBackupRestore

Error Message:
ObjectTracker found 4 object(s) that were not released!!! [SolrCore, 
InternalHttpClient, MockDirectoryWrapper, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)   expected null, but 
was:<ObjectTracker found 4 object(s) that were not released!!! [SolrCore, 
InternalHttpClient, MockDirectoryWrapper, InternalHttpClient] 
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)  at 
org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)  at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)  at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
  at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
  at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
  at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289) 
 at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
  at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
  at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
  at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)  
at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384) 
 at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
  at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
  at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)  
at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)  at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454) 
 at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252) 
 at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
  at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)  
at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)  at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
  at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)  at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:829)  >

Stack Trace:
java.lang.AssertionError: ObjectTracker found 4 object(s) that were not 
released!!! [SolrCore, InternalHttpClient, MockDirectoryWrapper, 
InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

 expected null, but was:<ObjectTracker found 4 object(s) that were not 
released!!! [SolrCore, InternalHttpClient, MockDirectoryWrapper, 
InternalHttpClient]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1092)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:921)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1462)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1343)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:95)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:367)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:397)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.lambda$handleRequestBody$0(CoreAdminHandler.java:189)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1289)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:134)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1404)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:414)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.lucene.store.MockDirectoryWrapper
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:362)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:553)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:384)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:458)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: 
org.apache.http.impl.client.InternalHttpClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:341)
        at 
org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:350)
        at 
org.apache.solr.handler.IndexFetcher.createHttpClient(IndexFetcher.java:233)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:275)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:454)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:252)
        at 
org.apache.solr.cloud.RecoveryStrategy.doReplicateOnlyRecovery(RecoveryStrategy.java:394)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:341)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:318)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:180)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:218)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

>
        at __randomizedtesting.SeedInfo.seed([83DEA822C923734C]:0)
        at org.junit.Assert.fail(Assert.java:89)
        at org.junit.Assert.failNotNull(Assert.java:756)
        at org.junit.Assert.assertNull(Assert.java:738)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:345)
        at jdk.internal.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:909)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base/java.lang.Thread.run(Thread.java:829)


FAILED:  
org.apache.solr.cloud.autoscaling.TriggerCooldownIntegrationTest.testCooldown

Error Message:


Stack Trace:
java.lang.NullPointerException
        at 
__randomizedtesting.SeedInfo.seed([83DEA822C923734C:B260C5C6B78906BE]:0)
        at 
org.apache.solr.cloud.autoscaling.TriggerCooldownIntegrationTest.testCooldown(TriggerCooldownIntegrationTest.java:120)
        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:566)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleMarkFailure.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base/java.lang.Thread.run(Thread.java:829)

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