[JENKINS] Solr-main-Linux (64bit/openj9/jdk-20.0.2) - Build # 18577 - Unstable!

[Policeman Jenkins Server]

Build: https://jenkins.thetaphi.de/job/Solr-main-Linux/18577/
Java: 64bit/openj9/jdk-20.0.2 -XX:-UseCompressedOops -Xgcpolicy:balanced

2 tests failed.
FAILED:  
org.apache.solr.hdfs.cloud.api.collections.TestHdfsCloudBackupRestore.classMethod

Error Message:
java.lang.AssertionError: ObjectTracker found 7 object(s) that were not 
released!!! [MMapDirectory, SolrCore, MMapDirectory, MMapDirectory, 
MMapDirectory, Http2SolrClient, Http2SolrClient]
org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:611)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.core.SolrCore:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1234)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:420)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:865)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:615)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1130)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:108)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:904)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1264)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:119)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1436)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:732)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:463)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:243)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:701)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

 expected null, but was:<ObjectTracker found 7 object(s) that were not 
released!!! [MMapDirectory, SolrCore, MMapDirectory, MMapDirectory, 
MMapDirectory, Http2SolrClient, Http2SolrClient]
org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:611)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.core.SolrCore:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1234)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:420)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:865)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:615)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1130)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:108)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:904)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1264)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:119)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1436)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:732)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:463)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:243)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:701)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

>

Stack Trace:
java.lang.AssertionError: ObjectTracker found 7 object(s) that were not 
released!!! [MMapDirectory, SolrCore, MMapDirectory, MMapDirectory, 
MMapDirectory, Http2SolrClient, Http2SolrClient]
org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:611)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.core.SolrCore:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1234)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:420)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:865)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:615)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1130)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:108)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:904)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1264)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:119)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1436)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:732)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:463)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:243)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:701)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

 expected null, but was:<ObjectTracker found 7 object(s) that were not 
released!!! [MMapDirectory, SolrCore, MMapDirectory, MMapDirectory, 
MMapDirectory, Http2SolrClient, Http2SolrClient]
org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:611)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.core.SolrCore:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.core.SolrCore
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1234)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:420)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:865)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.core.SolrCore.initSnapshotMetaDataManager(SolrCore.java:615)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1130)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.lucene.store.MMapDirectory:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.lucene.store.MMapDirectory
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:407)
        at 
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:108)
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:904)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1134)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1056)
        at 
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1726)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1592)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$0(CoreAdminOperation.java:118)
        at 
org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:408)
        at 
org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:374)
        at 
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:231)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:238)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:968)
        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:916)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:575)
        at 
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:254)
        at 
org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:215)
        at 
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:247)
        at 
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:211)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:209)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:192)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.apache.solr.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:187)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:790)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at 
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:1639)

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.inform(ReplicationHandler.java:1264)
        at 
org.apache.solr.cloud.ReplicateFromLeader.startReplication(ReplicateFromLeader.java:119)
        at 
org.apache.solr.cloud.ZkController.startReplicationFromLeader(ZkController.java:1436)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:732)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

org.apache.solr.client.solrj.impl.Http2SolrClient:org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException:
 org.apache.solr.client.solrj.impl.Http2SolrClient
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:54)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient.<init>(Http2SolrClient.java:143)
        at 
org.apache.solr.client.solrj.impl.Http2SolrClient$Builder.build(Http2SolrClient.java:978)
        at 
org.apache.solr.handler.IndexFetcher.createSolrClient(IndexFetcher.java:275)
        at org.apache.solr.handler.IndexFetcher.<init>(IndexFetcher.java:321)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:463)
        at 
org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:243)
        at 
org.apache.solr.cloud.RecoveryStrategy.doSyncOrReplicateRecovery(RecoveryStrategy.java:701)
        at 
org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:333)
        at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:309)
        at 
com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:212)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:363)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
Caused by: java.lang.Exception: Submitter stack trace
        at 
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:330)
        at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
        at 
com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:104)
        at 
org.apache.solr.update.DefaultSolrCoreState$2.run(DefaultSolrCoreState.java:349)
        ... 7 more

>
        at app//org.junit.Assert.fail(Assert.java:89)
        at app//org.junit.Assert.failNotNull(Assert.java:756)
        at app//org.junit.Assert.assertNull(Assert.java:738)
        at 
app//org.apache.solr.SolrTestCase$1.afterIfSuccessful(SolrTestCase.java:100)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:37)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
app//com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:80)
        at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
app//org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
        at 
app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
app//org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
        at 
app//org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
        at 
app//org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
        at 
app//org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
        at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
app//com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
        at 
app//com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
        at java.base@20.0.2/java.lang.Thread.run(Thread.java:1639)


FAILED:  
org.apache.solr.hdfs.cloud.api.collections.TestHdfsCloudBackupRestore.classMethod

Error Message:
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE 
scope at org.apache.solr.hdfs.cloud.api.collections.TestHdfsCloudBackupRestore: 
   1) Thread[id=634, name=indexFetcher-157-thread-1, state=TIMED_WAITING, 
group=TGRP-TestHdfsCloudBackupRestore]
        at java.base/java.lang.Object.waitImpl(Native Method)
        at java.base/java.lang.Object.wait(Object.java:255)
        at java.base/java.lang.Object.wait(Object.java:221)
        at 
org.apache.solr.core.CachingDirectoryFactory.close(CachingDirectoryFactory.java:176)
        at org.apache.solr.core.SolrCore.doClose(SolrCore.java:1867)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1731)
        at 
org.apache.solr.handler.IndexFetcher.openNewSearcherAndUpdateCommitPoint(IndexFetcher.java:1054)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:772)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE 
scope at org.apache.solr.hdfs.cloud.api.collections.TestHdfsCloudBackupRestore: 
   1) Thread[id=634, name=indexFetcher-157-thread-1, state=TIMED_WAITING, 
group=TGRP-TestHdfsCloudBackupRestore]
        at java.base/java.lang.Object.waitImpl(Native Method)
        at java.base/java.lang.Object.wait(Object.java:255)
        at java.base/java.lang.Object.wait(Object.java:221)
        at 
org.apache.solr.core.CachingDirectoryFactory.close(CachingDirectoryFactory.java:176)
        at org.apache.solr.core.SolrCore.doClose(SolrCore.java:1867)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1731)
        at 
org.apache.solr.handler.IndexFetcher.openNewSearcherAndUpdateCommitPoint(IndexFetcher.java:1054)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:772)
        at 
org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:421)
        at 
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:467)
        at 
org.apache.solr.handler.ReplicationHandler.lambda$setupPolling$13(ReplicationHandler.java:1229)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
        at 
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1639)
        at __randomizedtesting.SeedInfo.seed([683E7279D1438050]:0)

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