Build: 
https://ci-builds.apache.org/job/Lucene/job/Lucene-Solr-NightlyTests-8.6/7/

2 tests failed.
FAILED:  org.apache.lucene.index.TestIndexWriterDelete.testDeleteAllNoDeadLock

Error Message:
refusing to delete any files: this IndexWriter hit an unrecoverable exception

Stack Trace:
org.apache.lucene.store.AlreadyClosedException: refusing to delete any files: 
this IndexWriter hit an unrecoverable exception
        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
        at org.apache.lucene.index.IndexWriter.deleteAll(IndexWriter.java:2452)
        at 
org.apache.lucene.index.RandomIndexWriter.deleteAll(RandomIndexWriter.java:373)
        at 
org.apache.lucene.index.TestIndexWriterDelete.testDeleteAllNoDeadLock(TestIndexWriterDelete.java:348)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.lucene.index.CorruptIndexException: Problem reading index 
from MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
        at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
        at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
        ... 10 more


FAILED:  
org.apache.lucene.index.TestIndexWriterDelete.testOnlyDeletesTriggersMergeOnGetReader

Error Message:
Captured an uncaught exception in thread: Thread[id=22742, name=Lucene Merge 
Thread #3, state=RUNNABLE, group=TGRP-TestIndexWriterDelete]

Stack Trace:
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22742, name=Lucene Merge Thread #3, 
state=RUNNABLE, group=TGRP-TestIndexWriterDelete]
        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA:B483EA52B1E91195]:0)
Caused by: org.apache.lucene.index.MergePolicy$MergeException: 
org.apache.lucene.index.CorruptIndexException: Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
        at __randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:694)
Caused by: org.apache.lucene.index.CorruptIndexException: Problem reading index 
from MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
        at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
        at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
        ... 10 more




Build Log:
[...truncated 1376 lines...]
   [junit4] Suite: org.apache.lucene.index.TestIndexWriterDelete
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21921,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21925,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21919,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3554)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.maybeFlushOrCommit(RandomIndexWriter.java:215)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:196)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21924,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1306)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:163)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21923,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1306)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:163)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21920,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21922,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: refusing to delete any files: 
this IndexWriter hit an unrecoverable exception
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
refusing to delete any files: this IndexWriter hit an unrecoverable exception
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.checkpoint(IndexWriter.java:2564)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegment(IndexWriter.java:2642)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$publishFlushedSegments$15(IndexWriter.java:5211)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.innerPurge(DocumentsWriterFlushQueue.java:119)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.tryPurge(DocumentsWriterFlushQueue.java:150)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.purgeFlushTickets(DocumentsWriter.java:191)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegments(IndexWriter.java:5191)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.access$200(IndexWriter.java:217)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$1.afterSegmentsFlushed(IndexWriter.java:444)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:525)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:394)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:440)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1333)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> NOTE: download the large Jenkins line-docs file by running 
'ant get-jenkins-line-docs' in the lucene directory.
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestIndexWriterDelete -Dtests.method=testDeleteAllNoDeadLock 
-Dtests.seed=1E78CE92DC74D6EA -Dtests.multiplier=2 -Dtests.nightly=true 
-Dtests.slow=true 
-Dtests.linedocsfile=/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-NightlyTests-8.6/test-data/enwiki.random.lines.txt
 -Dtests.locale=es -Dtests.timezone=Mexico/General -Dtests.asserts=true 
-Dtests.file.encoding=UTF-8
   [junit4] ERROR   0.66s J1 | TestIndexWriterDelete.testDeleteAllNoDeadLock <<<
   [junit4]    > Throwable #1: org.apache.lucene.store.AlreadyClosedException: 
refusing to delete any files: this IndexWriter hit an unrecoverable exception
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.deleteAll(IndexWriter.java:2452)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.deleteAll(RandomIndexWriter.java:373)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete.testDeleteAllNoDeadLock(TestIndexWriterDelete.java:348)
   [junit4]    >        at java.lang.Thread.run(Thread.java:748)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #2: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22733, name=Thread-21921, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #3: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22737, name=Thread-21925, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #4: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22731, name=Thread-21919, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3554)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.maybeFlushOrCommit(RandomIndexWriter.java:215)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:196)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #5: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22735, name=Thread-21923, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1306)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:163)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #6: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22736, name=Thread-21924, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1306)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:163)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #7: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22732, name=Thread-21920, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
this IndexWriter is closed
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:739)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:753)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1330)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #8: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22734, name=Thread-21922, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: refusing to delete any files: 
this IndexWriter hit an unrecoverable exception
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
refusing to delete any files: this IndexWriter hit an unrecoverable exception
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.checkpoint(IndexWriter.java:2564)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegment(IndexWriter.java:2642)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$publishFlushedSegments$15(IndexWriter.java:5211)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.innerPurge(DocumentsWriterFlushQueue.java:119)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.tryPurge(DocumentsWriterFlushQueue.java:150)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.purgeFlushTickets(DocumentsWriter.java:191)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegments(IndexWriter.java:5191)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.access$200(IndexWriter.java:217)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$1.afterSegmentsFlushed(IndexWriter.java:444)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:525)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:394)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:440)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1333)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 moreThrowable #9: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22738, name=Thread-21926, state=RUNNABLE, 
group=TGRP-TestIndexWriterDelete]
   [junit4]    > Caused by: java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: refusing to delete any files: 
this IndexWriter hit an unrecoverable exception
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]    > Caused by: org.apache.lucene.store.AlreadyClosedException: 
refusing to delete any files: this IndexWriter hit an unrecoverable exception
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
   [junit4]    >        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.checkpoint(IndexWriter.java:2564)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegment(IndexWriter.java:2642)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$publishFlushedSegments$15(IndexWriter.java:5211)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.innerPurge(DocumentsWriterFlushQueue.java:119)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.tryPurge(DocumentsWriterFlushQueue.java:150)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.purgeFlushTickets(DocumentsWriter.java:191)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegments(IndexWriter.java:5191)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.access$200(IndexWriter.java:217)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$1.afterSegmentsFlushed(IndexWriter.java:444)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:525)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:394)
   [junit4]    >        at 
org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:440)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1333)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 more
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: Thread[Lucene Merge 
Thread #3,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: 
org.apache.lucene.index.CorruptIndexException: Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:694)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> ago 14, 2020 5:30:15 AM 
com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
 uncaughtException
   [junit4]   2> ADVERTENCIA: Uncaught exception in thread: 
Thread[Thread-21926,5,TGRP-TestIndexWriterDelete]
   [junit4]   2> java.lang.RuntimeException: 
org.apache.lucene.store.AlreadyClosedException: refusing to delete any files: 
this IndexWriter hit an unrecoverable exception
   [junit4]   2>        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
   [junit4]   2> Caused by: org.apache.lucene.store.AlreadyClosedException: 
refusing to delete any files: this IndexWriter hit an unrecoverable exception
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.ensureOpen(IndexFileDeleter.java:349)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.deleteFiles(IndexFileDeleter.java:669)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:589)
   [junit4]   2>        at 
org.apache.lucene.index.IndexFileDeleter.checkpoint(IndexFileDeleter.java:531)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.checkpoint(IndexWriter.java:2564)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegment(IndexWriter.java:2642)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$publishFlushedSegments$15(IndexWriter.java:5211)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.innerPurge(DocumentsWriterFlushQueue.java:119)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriterFlushQueue.tryPurge(DocumentsWriterFlushQueue.java:150)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.purgeFlushTickets(DocumentsWriter.java:191)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.publishFlushedSegments(IndexWriter.java:5191)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.access$200(IndexWriter.java:217)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$1.afterSegmentsFlushed(IndexWriter.java:444)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:525)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:394)
   [junit4]   2>        at 
org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:440)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1333)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1619)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1262)
   [junit4]   2>        at 
org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:193)
   [junit4]   2>        at 
org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
   [junit4]   2> Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]   2>        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]   2>        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]   2>        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]   2>        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]   2> Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]   2>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]   2>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]   2>        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]   2>        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]   2>        ... 10 more
   [junit4]   2> 
   [junit4]   2> NOTE: download the large Jenkins line-docs file by running 
'ant get-jenkins-line-docs' in the lucene directory.
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestIndexWriterDelete 
-Dtests.method=testOnlyDeletesTriggersMergeOnGetReader 
-Dtests.seed=1E78CE92DC74D6EA -Dtests.multiplier=2 -Dtests.nightly=true 
-Dtests.slow=true 
-Dtests.linedocsfile=/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-NightlyTests-8.6/test-data/enwiki.random.lines.txt
 -Dtests.locale=es -Dtests.timezone=Mexico/General -Dtests.asserts=true 
-Dtests.file.encoding=UTF-8
   [junit4] ERROR   0.01s J1 | 
TestIndexWriterDelete.testOnlyDeletesTriggersMergeOnGetReader <<<
   [junit4]    > Throwable #1: 
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught 
exception in thread: Thread[id=22742, name=Lucene Merge Thread #3, 
state=RUNNABLE, group=TGRP-TestIndexWriterDelete]
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA:B483EA52B1E91195]:0)
   [junit4]    > Caused by: org.apache.lucene.index.MergePolicy$MergeException: 
org.apache.lucene.index.CorruptIndexException: Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([1E78CE92DC74D6EA]:0)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:694)
   [junit4]    > Caused by: org.apache.lucene.index.CorruptIndexException: 
Problem reading index from 
MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)) 
(resource=MockDirectoryWrapper(NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)))
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:142)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:171)
   [junit4]    >        at 
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:714)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$12(IndexWriter.java:4533)
   [junit4]    >        at 
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:439)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4530)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4190)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5741)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
   [junit4]    >        at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682)
   [junit4]    > Caused by: java.io.FileNotFoundException: _44.fnm in 
dir=NRTCachingDirectory(RAMDirectory@592d3241 
lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@57ead714; 
maxCacheMB=0.796875 maxMergeSizeMB=0.314453125)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:753)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:157)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1075)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    >        ... 10 more
   [junit4]   2> NOTE: leaving temporary files on disk at: 
/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-NightlyTests-8.6/checkout/lucene/build/core/test/J1/temp/lucene.index.TestIndexWriterDelete_1E78CE92DC74D6EA-001
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene86): 
{field=FST50, city=PostingsFormat(name=LuceneVarGapDocFreqInterval), 
contents=PostingsFormat(name=LuceneVarGapFixedInterval), 
id=PostingsFormat(name=LuceneVarGapDocFreqInterval), body=FST50, 
value=Lucene84, content=Lucene84}, docValues:{dv=DocValuesFormat(name=Direct)}, 
maxPointsInLeafNode=1058, maxMBSortInHeap=5.424835581779282, 
sim=Asserting(RandomSimilarity(queryNorm=false): {field=IB SPL-D3(800.0), 
contents=DFR GBZ(0.3), city=DFR I(ne)B3(800.0), id=DFR I(n)B1, body=IB 
SPL-LZ(0.3), content=IB LL-LZ(0.3)}), locale=es, timezone=Mexico/General
   [junit4]   2> NOTE: Linux 4.15.0-108-generic amd64/Oracle Corporation 
1.8.0_252 (64-bit)/cpus=4,threads=1,free=209147896,total=530579456
   [junit4]   2> NOTE: All tests run in this JVM: 
[TestFlushByRamOrCountsPolicy, TestSegmentReader, TestDocIdSetIterator, 
TestDocument, TestSameTokenSamePosition, TestStressNRT, TestIndexedDISI, 
TestSortedSetSortField, TestLatLonPointDistanceFeatureQuery, 
TestGraphTokenStreamFiniteStrings, TestLRUQueryCache, TestNRTReaderWithThreads, 
TestIndexWriterExceptions2, TestPendingSoftDeletes, TestCharFilter, 
TestParallelLeafReader, Test2BPostingsBytes, TestConstantScoreScorer, 
TestNewestSegment, TestCodecUtil, TestTessellator, TestDeterminizeLexicon, 
TestByteBuffersDirectory, TestOperations, TestBooleanOr, TestDocsWithFieldSet, 
TestDirectPacked, TestSearchAfter, TestFilterWeight, TestRadixSelector, 
TestConjunctionDISI, TestFrozenBufferedUpdates, TestBinaryTerms, 
TestLockFactory, TestXYMultiLineShapeQueries, TestDirectoryReaderReopen, 
TestFastLZ4, TestFilterDirectory, TestMultiLevelSkipList, 
TestSegmentCacheables, TestIndexWriter, TestIndexWriterMerging, 
TestLucene84PostingsFormat, TestLongBitSet, TestGraphTokenFilter, 
TestPolygon2D, TestIndexWriterLockRelease, TestTermsHashPerField, 
TestCachingCollector, TestDemo, TestBoolean2, TestStressDeletes, 
TestAllFilesHaveChecksumFooter, TestTerms, TestFSTs, TestDeletionPolicy, 
TestDocIdSetBuilder, TestInPlaceMergeSorter, TestSimilarityBase, 
TestLongDistanceFeatureQuery, TestNoMergeScheduler, 
TestLucene80NormsFormatMergeInstance, TestExceedMaxTermLength, 
TestBKDRadixSort, TestCompiledAutomaton, TestSearch, 
TestMultiTermConstantScore, TestTotalHits, TestConcurrentMergeScheduler, 
TestTragicIndexWriterDeadlock, TestCachingTokenFilter, 
TestLMDirichletSimilarity, TestStopFilter, TestUpgradeIndexMergePolicy, 
TestFieldType, TestTimSorter, TestManyFields, TestXYPointShapeQueries, 
TestRecyclingIntBlockAllocator, TestLatLonPolygonShapeQueries, 
TestLucene50LiveDocsFormat, TestPoint, TestFixedBitSet, 
TestSoftDeletesRetentionMergePolicy, TestSparseFixedBitSet, 
TestPackedTokenAttributeImpl, Test2BBinaryDocValues, TestVersion, 
TestIndexWriterReader, TestBasicModelIn, TestTrackingDirectoryWrapper, 
TestByteArrayDataInput, TestXYShapeEncoding, TestInfoStream, TestDateSort, 
TestWordlistLoader, TestStandardAnalyzer, TestBytesRefAttImpl, 
TestFastCompressionMode, TestFastDecompressionMode, TestHighCompressionMode, 
TestLucene50StoredFieldsFormatHighCompression, 
TestLucene50StoredFieldsFormatMergeInstance, TestLucene50TermVectorsFormat, 
TestLucene86PointsFormat, TestLucene86SegmentInfoFormat, 
TestPerFieldDocValuesFormat, TestPerFieldPostingsFormat, 
TestPerFieldPostingsFormat2, TestBinaryDocument, TestFeatureDoubleValues, 
TestFeatureField, TestFeatureSort, TestIntRange, TestLatLonDocValuesField, 
TestLatLonLineShapeQueries, TestLatLonMultiLineShapeQueries, 
TestLatLonMultiPointShapeQueries, TestLatLonMultiPolygonShapeQueries, 
TestCircle2D, TestGeoEncodingUtils, TestGeoUtils, TestXYLine, TestXYPoint, 
TestXYPolygon, Test2BNumericDocValues, Test2BPoints, Test2BPositions, 
Test2BSortedDocValuesOrds, Test2BTerms, Test4GBStoredFields, TestAddIndexes, 
TestAllFilesCheckIndexHeader, TestAllFilesDetectBitFlips, TestAtomicUpdate, 
TestBagOfPositions, TestBagOfPostings, TestByteSlices, TestCheckIndex, 
TestCodecHoldsOpenFiles, TestCrash, TestCrashCausesCorruptIndex, 
TestCustomNorms, TestDocCount, TestDocIDMerger, 
TestDocInverterPerFieldErrorInfo, TestDocValues, TestDocValuesFieldUpdates, 
TestDocValuesIndexing, TestDocumentsWriterDeleteQueue, 
TestDocumentsWriterStallControl, TestDuelingCodecs, TestFieldInfos, 
TestFieldInvertState, TestFieldReuse, TestFieldUpdatesBuffer, TestFieldsReader, 
TestFilterCodecReader, TestFilterDirectoryReader, TestFilterLeafReader, 
TestFilterMergePolicy, TestIndexFileDeleter, TestIndexInput, 
TestIndexManyDocuments, TestIndexOptions, TestIndexReaderClose, 
TestIndexSorting, TestIndexWriterConfig, TestIndexWriterDelete]
   [junit4] Completed [285/567 (1!)] on J1 in 118.28s, 26 tests, 2 errors, 1 
skipped <<< FAILURES!

[...truncated 67200 lines...]
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