[JENKINS-EA] Lucene-Solr-6.x-Linux (32bit/jdk-9-ea+107) - Build # 72 - Failure!

[Policeman Jenkins Server]

Build: http://jenkins.thetaphi.de/job/Lucene-Solr-6.x-Linux/72/
Java: 32bit/jdk-9-ea+107 -server -XX:+UseG1GC

9 tests failed.
FAILED:  
org.apache.lucene.index.TestDemoParallelLeafReader.testRandomMultipleSchemaGensSameField

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/_0.cfs")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/_0.cfs")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:649648792987D7AA]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.store.MockIndexInputWrapper.close(MockIndexInputWrapper.java:61)
        at org.apache.lucene.util.IOUtils.close(IOUtils.java:89)
        at org.apache.lucene.util.IOUtils.close(IOUtils.java:76)
        at 
org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.close(Lucene50CompoundReader.java:134)
        at org.apache.lucene.util.IOUtils.close(IOUtils.java:89)
        at org.apache.lucene.util.IOUtils.close(IOUtils.java:76)
        at 
org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:159)
        at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:176)
        at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
        at 
org.apache.lucene.index.ParallelLeafReader.doClose(ParallelLeafReader.java:257)
        at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doClose(TestDemoParallelLeafReader.java:220)
        at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
        at org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:100)
        at org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:36)
        at 
org.apache.lucene.search.ReferenceManager.release(ReferenceManager.java:274)
        at 
org.apache.lucene.search.ReferenceManager.swapReference(ReferenceManager.java:62)
        at 
org.apache.lucene.search.ReferenceManager.close(ReferenceManager.java:146)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.close(TestDemoParallelLeafReader.java:254)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testRandomMultipleSchemaGensSameField(TestDemoParallelLeafReader.java:1117)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
        Suppressed: java.lang.RuntimeException: java.io.IOException: Unable to 
unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/segments_1")
                at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelReaderClosed.onClose(TestDemoParallelLeafReader.java:346)
                at 
org.apache.lucene.index.IndexReader.notifyReaderClosedListeners(IndexReader.java:145)
                at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:260)
                ... 47 more
        Caused by: java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/segments_1")
                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
                at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
                at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
                at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
                at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
                at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113)
                at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1060)
                at 
org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:283)
                at 
org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:507)
                at org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:295)
                at 
org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:853)
                at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelReaderClosed.onClose(TestDemoParallelLeafReader.java:340)
                ... 49 more
        Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
                at java.security.AccessController.doPrivileged(Native Method)
                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
                ... 60 more
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 58 more


FAILED:  
org.apache.lucene.index.TestDemoParallelLeafReader.testBasicMultipleSchemaGens

Error Message:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-004/segs/5btt0smqpd70w425ve75et7tb_1/_0.dii")

Stack Trace:
java.lang.RuntimeException: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-004/segs/5btt0smqpd70w425ve75et7tb_1/_0.dii")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:2F56285DC0B8E5A9]:0)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:202)
        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.wrap(FilterDirectoryReader.java:56)
        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.access$000(FilterDirectoryReader.java:51)
        at 
org.apache.lucene.index.FilterDirectoryReader.<init>(FilterDirectoryReader.java:83)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.<init>(TestDemoParallelLeafReader.java:194)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doWrapDirectoryReader(TestDemoParallelLeafReader.java:210)
        at 
org.apache.lucene.index.FilterDirectoryReader.wrapDirectoryReader(FilterDirectoryReader.java:99)
        at 
org.apache.lucene.index.FilterDirectoryReader.doOpenIfChanged(FilterDirectoryReader.java:104)
        at 
org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:140)
        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:105)
        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:36)
        at 
org.apache.lucene.search.ReferenceManager.doMaybeRefresh(ReferenceManager.java:176)
        at 
org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:225)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testBasicMultipleSchemaGens(TestDemoParallelLeafReader.java:925)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-004/segs/5btt0smqpd70w425ve75et7tb_1/_0.dii")
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
        at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
        at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1086)
        at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$2.reindex(TestDemoParallelLeafReader.java:757)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:395)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:161)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:199)
        ... 49 more
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 65 more


FAILED:  org.apache.lucene.index.TestDemoParallelLeafReader.testRandom

Error Message:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-005/segs/5btt0smqpd70w425ve75et7tj_0/_0.dii")

Stack Trace:
java.lang.RuntimeException: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-005/segs/5btt0smqpd70w425ve75et7tj_0/_0.dii")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:468B66B76F1130C0]:0)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:202)
        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.wrap(FilterDirectoryReader.java:56)
        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.access$000(FilterDirectoryReader.java:51)
        at 
org.apache.lucene.index.FilterDirectoryReader.<init>(FilterDirectoryReader.java:83)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.<init>(TestDemoParallelLeafReader.java:194)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doWrapDirectoryReader(TestDemoParallelLeafReader.java:210)
        at 
org.apache.lucene.index.FilterDirectoryReader.wrapDirectoryReader(FilterDirectoryReader.java:99)
        at 
org.apache.lucene.index.FilterDirectoryReader.doOpenIfChanged(FilterDirectoryReader.java:104)
        at 
org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:140)
        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:105)
        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:36)
        at 
org.apache.lucene.search.ReferenceManager.doMaybeRefresh(ReferenceManager.java:176)
        at 
org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:225)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testRandom(TestDemoParallelLeafReader.java:1256)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-005/segs/5btt0smqpd70w425ve75et7tj_0/_0.dii")
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
        at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
        at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1086)
        at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:689)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:395)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:161)
        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:199)
        ... 49 more
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 65 more


FAILED:  org.apache.lucene.index.TestFieldsReader.testExceptions

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestFieldsReader_34C743B8DE7186B3-001/testfieldswriterexceptions-001/_0.si")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestFieldsReader_34C743B8DE7186B3-001/testfieldswriterexceptions-001/_0.si")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:42C61110760CF805]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.index.TestFieldsReader$FaultyFSDirectory.openInput(TestFieldsReader.java:121)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
        at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
        at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1086)
        at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
        at 
org.apache.lucene.index.TestFieldsReader.testExceptions(TestFieldsReader.java:199)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 50 more


FAILED:  
org.apache.lucene.index.TestIndexFileDeleter.testVirusScannerDoesntCorruptIndex

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/tempDir-001/segments_1")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/tempDir-001/segments_1")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:7B000540F336F9C5]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1060)
        at 
org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:283)
        at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:910)
        at 
org.apache.lucene.index.TestIndexFileDeleter.testVirusScannerDoesntCorruptIndex(TestIndexFileDeleter.java:239)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 45 more


FAILED:  org.apache.lucene.index.TestIndexFileDeleter.testExcInDeleteFile

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/index-MMapDirectory-001/_0.si")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/index-MMapDirectory-001/_0.si")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:D9B7A5DB5D379066]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
        at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
        at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2956)
        at 
org.apache.lucene.index.RandomIndexWriter.commit(RandomIndexWriter.java:288)
        at 
org.apache.lucene.index.TestIndexFileDeleter.testExcInDeleteFile(TestIndexFileDeleter.java:527)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 49 more


FAILED:  
org.apache.lucene.index.TestIndexWriterExceptions.testRandomExceptionDuringRollback

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexWriterExceptions_34C743B8DE7186B3-001/index-MMapDirectory-001/_0.fdx")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexWriterExceptions_34C743B8DE7186B3-001/index-MMapDirectory-001/_0.fdx")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:7E73524161BB6405]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.codecs.lucene50.Lucene50CompoundFormat.write(Lucene50CompoundFormat.java:90)
        at 
org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4681)
        at 
org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:496)
        at 
org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:460)
        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:502)
        at 
org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:614)
        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2815)
        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
        at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2956)
        at 
org.apache.lucene.index.TestIndexWriterExceptions.testRandomExceptionDuringRollback(TestIndexWriterExceptions.java:2220)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 53 more


FAILED:  org.apache.lucene.index.TestIndexWriterUnicode.testInvalidUTF16

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexWriterUnicode_34C743B8DE7186B3-001/index-MMapDirectory-001/_0_Lucene50_0.doc")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexWriterUnicode_34C743B8DE7186B3-001/index-MMapDirectory-001/_0_Lucene50_0.doc")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:E68477700FC9DADE]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
        at 
org.apache.lucene.codecs.lucene50.Lucene50CompoundFormat.write(Lucene50CompoundFormat.java:90)
        at 
org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4681)
        at 
org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:496)
        at 
org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:460)
        at 
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:502)
        at 
org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:614)
        at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3138)
        at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3113)
        at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1084)
        at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
        at 
org.apache.lucene.index.TestIndexWriterUnicode.testInvalidUTF16(TestIndexWriterUnicode.java:260)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 54 more


FAILED:  org.apache.lucene.util.packed.TestPackedInts.testPackedInts

Error Message:
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.util.packed.TestPackedInts_34C743B8DE7186B3-001/index-MMapDirectory-001/out.bin")

Stack Trace:
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.util.packed.TestPackedInts_34C743B8DE7186B3-001/index-MMapDirectory-001/out.bin")
        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:D4794E7BD458C1CF]:0)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
        at 
org.apache.lucene.util.packed.TestPackedInts.testPackedInts(TestPackedInts.java:130)
        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:520)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
        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:367)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
        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:367)
        at java.lang.Thread.run(Thread.java:804)
Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
        ... 41 more




Build Log:
[...truncated 609 lines...]
   [junit4] Suite: org.apache.lucene.index.TestDemoParallelLeafReader
   [junit4]   1> TEST: hit IOExc closing 
dir=MockDirectoryWrapper(MMapDirectory@/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0
 lockFactory=org.apache.lucene.store.NativeFSLockFactory@1648d3e)
   [junit4]   1> java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/segments_1")
   [junit4]   1>        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]   1>        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]   1>        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]   1>        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]   1>        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]   1>        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113)
   [junit4]   1>        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1060)
   [junit4]   1>        at 
org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:283)
   [junit4]   1>        at 
org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:507)
   [junit4]   1>        at 
org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:295)
   [junit4]   1>        at 
org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:853)
   [junit4]   1>        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelReaderClosed.onClose(TestDemoParallelLeafReader.java:340)
   [junit4]   1>        at 
org.apache.lucene.index.IndexReader.notifyReaderClosedListeners(IndexReader.java:145)
   [junit4]   1>        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:260)
   [junit4]   1>        at 
org.apache.lucene.index.ParallelLeafReader.doClose(ParallelLeafReader.java:257)
   [junit4]   1>        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
   [junit4]   1>        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doClose(TestDemoParallelLeafReader.java:220)
   [junit4]   1>        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
   [junit4]   1>        at 
org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:100)
   [junit4]   1>        at 
org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:36)
   [junit4]   1>        at 
org.apache.lucene.search.ReferenceManager.release(ReferenceManager.java:274)
   [junit4]   1>        at 
org.apache.lucene.search.ReferenceManager.swapReference(ReferenceManager.java:62)
   [junit4]   1>        at 
org.apache.lucene.search.ReferenceManager.close(ReferenceManager.java:146)
   [junit4]   1>        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.close(TestDemoParallelLeafReader.java:254)
   [junit4]   1>        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testRandomMultipleSchemaGensSameField(TestDemoParallelLeafReader.java:1117)
   [junit4]   1>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
   [junit4]   1>        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]   1>        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]   1>        at java.lang.reflect.Method.invoke(Method.java:520)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1764)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:871)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:907)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:921)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
   [junit4]   1>        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:367)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:809)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:460)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:880)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:781)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:816)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:827)
   [junit4]   1>        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   1>        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   1>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:367)
   [junit4]   1>        at java.lang.Thread.run(Thread.java:804)
   [junit4]   1> Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]   1>        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]   1>        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]   1>        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]   1>        ... 60 more
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestDemoParallelLeafReader 
-Dtests.method=testRandomMultipleSchemaGensSameField 
-Dtests.seed=34C743B8DE7186B3 -Dtests.multiplier=3 -Dtests.slow=true 
-Dtests.locale=ja-JP -Dtests.timezone=Europe/Kiev -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.22s J2 | 
TestDemoParallelLeafReader.testRandomMultipleSchemaGensSameField <<<
   [junit4]    > Throwable #1: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/_0.cfs")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:649648792987D7AA]:0)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.store.MockIndexInputWrapper.close(MockIndexInputWrapper.java:61)
   [junit4]    >        at org.apache.lucene.util.IOUtils.close(IOUtils.java:89)
   [junit4]    >        at org.apache.lucene.util.IOUtils.close(IOUtils.java:76)
   [junit4]    >        at 
org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.close(Lucene50CompoundReader.java:134)
   [junit4]    >        at org.apache.lucene.util.IOUtils.close(IOUtils.java:89)
   [junit4]    >        at org.apache.lucene.util.IOUtils.close(IOUtils.java:76)
   [junit4]    >        at 
org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:159)
   [junit4]    >        at 
org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:176)
   [junit4]    >        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
   [junit4]    >        at 
org.apache.lucene.index.ParallelLeafReader.doClose(ParallelLeafReader.java:257)
   [junit4]    >        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doClose(TestDemoParallelLeafReader.java:220)
   [junit4]    >        at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:253)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:100)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.decRef(ReaderManager.java:36)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.release(ReferenceManager.java:274)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.swapReference(ReferenceManager.java:62)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.close(ReferenceManager.java:146)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.close(TestDemoParallelLeafReader.java:254)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testRandomMultipleSchemaGensSameField(TestDemoParallelLeafReader.java:1117)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    >        Suppressed: java.lang.RuntimeException: 
java.io.IOException: Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/segments_1")
   [junit4]    >                at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelReaderClosed.onClose(TestDemoParallelLeafReader.java:346)
   [junit4]    >                at 
org.apache.lucene.index.IndexReader.notifyReaderClosedListeners(IndexReader.java:145)
   [junit4]    >                at 
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:260)
   [junit4]    >                ... 47 more
   [junit4]    >        Caused by: java.io.IOException: Unable to unmap the 
mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-003/segs/5btt0smqpd70w425ve75et7sv_0/segments_1")
   [junit4]    >                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >                at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >                at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >                at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >                at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >                at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113)
   [junit4]    >                at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1060)
   [junit4]    >                at 
org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:283)
   [junit4]    >                at 
org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:507)
   [junit4]    >                at 
org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:295)
   [junit4]    >                at 
org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:853)
   [junit4]    >                at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelReaderClosed.onClose(TestDemoParallelLeafReader.java:340)
   [junit4]    >                ... 49 more
   [junit4]    >        Caused by: java.lang.IncompatibleClassChangeError: 
Found class jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >                at 
java.security.AccessController.doPrivileged(Native Method)
   [junit4]    >                at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >                ... 60 more
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 58 more
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestDemoParallelLeafReader 
-Dtests.method=testBasicMultipleSchemaGens -Dtests.seed=34C743B8DE7186B3 
-Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=ja-JP 
-Dtests.timezone=Europe/Kiev -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.05s J2 | 
TestDemoParallelLeafReader.testBasicMultipleSchemaGens <<<
   [junit4]    > Throwable #1: java.lang.RuntimeException: java.io.IOException: 
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-004/segs/5btt0smqpd70w425ve75et7tb_1/_0.dii")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:2F56285DC0B8E5A9]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:202)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.wrap(FilterDirectoryReader.java:56)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.access$000(FilterDirectoryReader.java:51)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.<init>(FilterDirectoryReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.<init>(TestDemoParallelLeafReader.java:194)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doWrapDirectoryReader(TestDemoParallelLeafReader.java:210)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.wrapDirectoryReader(FilterDirectoryReader.java:99)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.doOpenIfChanged(FilterDirectoryReader.java:104)
   [junit4]    >        at 
org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:140)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:105)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:36)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.doMaybeRefresh(ReferenceManager.java:176)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:225)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testBasicMultipleSchemaGens(TestDemoParallelLeafReader.java:925)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    > Caused by: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-004/segs/5btt0smqpd70w425ve75et7tb_1/_0.dii")
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1086)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$2.reindex(TestDemoParallelLeafReader.java:757)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:395)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:161)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:199)
   [junit4]    >        ... 49 more
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 65 more
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestDemoParallelLeafReader -Dtests.method=testRandom 
-Dtests.seed=34C743B8DE7186B3 -Dtests.multiplier=3 -Dtests.slow=true 
-Dtests.locale=ja-JP -Dtests.timezone=Europe/Kiev -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.04s J2 | TestDemoParallelLeafReader.testRandom <<<
   [junit4]    > Throwable #1: java.lang.RuntimeException: java.io.IOException: 
Unable to unmap the mapped buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-005/segs/5btt0smqpd70w425ve75et7tj_0/_0.dii")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:468B66B76F1130C0]:0)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:202)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.wrap(FilterDirectoryReader.java:56)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader$SubReaderWrapper.access$000(FilterDirectoryReader.java:51)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.<init>(FilterDirectoryReader.java:83)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.<init>(TestDemoParallelLeafReader.java:194)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader.doWrapDirectoryReader(TestDemoParallelLeafReader.java:210)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.wrapDirectoryReader(FilterDirectoryReader.java:99)
   [junit4]    >        at 
org.apache.lucene.index.FilterDirectoryReader.doOpenIfChanged(FilterDirectoryReader.java:104)
   [junit4]    >        at 
org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:140)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:105)
   [junit4]    >        at 
org.apache.lucene.index.ReaderManager.refreshIfNeeded(ReaderManager.java:36)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.doMaybeRefresh(ReferenceManager.java:176)
   [junit4]    >        at 
org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:225)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader.testRandom(TestDemoParallelLeafReader.java:1256)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    > Caused by: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001/tempDir-005/segs/5btt0smqpd70w425ve75et7tj_0/_0.dii")
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1086)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1129)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:689)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:395)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:161)
   [junit4]    >        at 
org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ParallelLeafDirectoryReader$1.wrap(TestDemoParallelLeafReader.java:199)
   [junit4]    >        ... 49 more
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 65 more
   [junit4]   2> NOTE: leaving temporary files on disk at: 
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_34C743B8DE7186B3-001
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene60): 
{id=PostingsFormat(name=Direct), text=Lucene50(blocksize=128)}, 
docValues:{number_5=DocValuesFormat(name=Memory), 
number_4=DocValuesFormat(name=Asserting), 
number=DocValuesFormat(name=Lucene54), number_3=DocValuesFormat(name=Lucene54), 
number_2=DocValuesFormat(name=Lucene54), number_1=DocValuesFormat(name=Memory), 
number_0=DocValuesFormat(name=Asserting)}, maxPointsInLeafNode=102, 
maxMBSortInHeap=4.8801009585405035, 
sim=RandomSimilarity(queryNorm=true,coord=yes): {text=IB SPL-L2}, locale=ja-JP, 
timezone=Europe/Kiev
   [junit4]   2> NOTE: Linux 3.19.0-51-generic i386/Oracle Corporation 9-ea 
(32-bit)/cpus=12,threads=1,free=126468160,total=228589568
   [junit4]   2> NOTE: All tests run in this JVM: [TestIndexWriterMaxDocs, 
TestMixedCodecs, TestDocumentWriter, TestForUtil, TestTermVectorsReader, 
TestIntsRef, TestIndexInput, TestBlockPostingsFormat, 
TestIndexWriterThreadsToSegments, TestSloppyPhraseQuery, TestCharsRefBuilder, 
TestMultiPhraseEnum, TestPackedTokenAttributeImpl, TestTieredMergePolicy, 
TestIndexWriterMerging, TestIndexWriterOnDiskFull, TestNumericRangeQuery32, 
TestMultiMMap, TestTotalHitCountCollector, TestNIOFSDirectory, TestNorms, 
TestSparseFixedBitDocIdSet, TestMultiLevelSkipList, 
TestFrequencyTrackingRingBuffer, TestIndexCommit, TestIntroSorter, 
TestPrefixQuery, TestCodecHoldsOpenFiles, TestComplexExplanationsOfNonMatches, 
TestCharTermAttributeImpl, TestRollingUpdates, TestCachingCollector, 
TestTryDelete, TestPhrasePrefixQuery, TestLazyProxSkipping, 
TestControlledRealTimeReopenThread, TestPrefixCodedTerms, TestNot, 
TestBufferedChecksum, TestMergeSchedulerExternal, TestFieldReuse, 
TestNumericTokenStream, TestSleepingLockWrapper, TestNoMergeScheduler, 
TestSpanExplanationsOfNonMatches, TestMaxTermFrequency, TestNRTThreads, 
TestReqExclBulkScorer, TestNumericUtils, TestDemo, TestIndexableField, 
Test2BNumericDocValues, TestBufferedIndexInput, TestBooleanOr, 
TestSearchForDuplicates, TestSortedSetSelector, TestConjunctions, 
TestLucene60PointsFormat, TestSearch, TestBooleanRewrites, TestDirectoryReader, 
TestDocBoost, TestCustomSearcherSort, TestDemoParallelLeafReader]
   [junit4] Completed [129/412 (1!)] on J2 in 3.00s, 5 tests, 3 errors <<< 
FAILURES!

[...truncated 131 lines...]
   [junit4] Suite: org.apache.lucene.util.packed.TestPackedInts
   [junit4] IGNOR/A 0.00s J2 | TestPackedInts.testBlockReaderOverflow
   [junit4]    > Assumption #1: 'nightly' test group is disabled (@Nightly())
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestPackedInts 
-Dtests.method=testPackedInts -Dtests.seed=34C743B8DE7186B3 
-Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=en-NZ 
-Dtests.timezone=Asia/Taipei -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.50s J2 | TestPackedInts.testPackedInts <<<
   [junit4]    > Throwable #1: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.util.packed.TestPackedInts_34C743B8DE7186B3-001/index-MMapDirectory-001/out.bin")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:D4794E7BD458C1CF]:0)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >        at 
org.apache.lucene.util.packed.TestPackedInts.testPackedInts(TestPackedInts.java:130)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 41 more
   [junit4]   2> NOTE: leaving temporary files on disk at: 
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.util.packed.TestPackedInts_34C743B8DE7186B3-001
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene60): {}, 
docValues:{}, maxPointsInLeafNode=1829, maxMBSortInHeap=5.008206454708757, 
sim=ClassicSimilarity, locale=en-NZ, timezone=Asia/Taipei
   [junit4]   2> NOTE: Linux 3.19.0-51-generic i386/Oracle Corporation 9-ea 
(32-bit)/cpus=12,threads=1,free=240965272,total=312475648
   [junit4]   2> NOTE: All tests run in this JVM: [TestIndexWriterMaxDocs, 
TestMixedCodecs, TestDocumentWriter, TestForUtil, TestTermVectorsReader, 
TestIntsRef, TestIndexInput, TestBlockPostingsFormat, 
TestIndexWriterThreadsToSegments, TestSloppyPhraseQuery, TestCharsRefBuilder, 
TestMultiPhraseEnum, TestPackedTokenAttributeImpl, TestTieredMergePolicy, 
TestIndexWriterMerging, TestIndexWriterOnDiskFull, TestNumericRangeQuery32, 
TestMultiMMap, TestTotalHitCountCollector, TestNIOFSDirectory, TestNorms, 
TestSparseFixedBitDocIdSet, TestMultiLevelSkipList, 
TestFrequencyTrackingRingBuffer, TestIndexCommit, TestIntroSorter, 
TestPrefixQuery, TestCodecHoldsOpenFiles, TestComplexExplanationsOfNonMatches, 
TestCharTermAttributeImpl, TestRollingUpdates, TestCachingCollector, 
TestTryDelete, TestPhrasePrefixQuery, TestLazyProxSkipping, 
TestControlledRealTimeReopenThread, TestPrefixCodedTerms, TestNot, 
TestBufferedChecksum, TestMergeSchedulerExternal, TestFieldReuse, 
TestNumericTokenStream, TestSleepingLockWrapper, TestNoMergeScheduler, 
TestSpanExplanationsOfNonMatches, TestMaxTermFrequency, TestNRTThreads, 
TestReqExclBulkScorer, TestNumericUtils, TestDemo, TestIndexableField, 
Test2BNumericDocValues, TestBufferedIndexInput, TestBooleanOr, 
TestSearchForDuplicates, TestSortedSetSelector, TestConjunctions, 
TestLucene60PointsFormat, TestSearch, TestBooleanRewrites, TestDirectoryReader, 
TestDocBoost, TestCustomSearcherSort, TestDemoParallelLeafReader, 
TestMultiThreadTermVectors, TestAllFilesHaveChecksumFooter, 
TestLucene50TermVectorsFormat, TestMathUtil, Test2BSortedDocValuesOrds, 
TestIndexWriter, TestBytesStore, TestPackedInts]
   [junit4] Completed [168/412 (2!)] on J2 in 8.75s, 28 tests, 1 error, 3 
skipped <<< FAILURES!

[...truncated 12 lines...]
   [junit4] Suite: org.apache.lucene.index.TestIndexWriterExceptions
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestIndexWri

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

t, TestDemoParallelLeafReader, TestMultiThreadTermVectors, 
TestAllFilesHaveChecksumFooter, TestLucene50TermVectorsFormat, TestMathUtil, 
Test2BSortedDocValuesOrds, TestIndexWriter, TestBytesStore, TestPackedInts, 
TestAddIndexes, TestIndexWriterExceptions, TestDeletionPolicy, 
TestIndexWriterDelete, TestAtomicUpdate, TestIndexWriterCommit, 
TestDirectoryReaderReopen, TestSearchWithThreads, TestConcurrentMergeScheduler, 
TestTopDocsMerge, TestIndexWriterUnicode, TestArrayUtil, 
TestConsistentFieldNumbers, TestBagOfPositions, TestCrash, TestSort, 
TestFieldsReader]
   [junit4] Completed [244/412 (5!)] on J2 in 0.40s, 2 tests, 1 error <<< 
FAILURES!

[...truncated 166 lines...]
   [junit4] Suite: org.apache.lucene.index.TestIndexFileDeleter
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestIndexFileDeleter 
-Dtests.method=testVirusScannerDoesntCorruptIndex -Dtests.seed=34C743B8DE7186B3 
-Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=kde-TZ 
-Dtests.timezone=Indian/Mauritius -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.01s J2 | 
TestIndexFileDeleter.testVirusScannerDoesntCorruptIndex <<<
   [junit4]    > Throwable #1: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/tempDir-001/segments_1")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:7B000540F336F9C5]:0)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >        at 
org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1060)
   [junit4]    >        at 
org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:283)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:910)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexFileDeleter.testVirusScannerDoesntCorruptIndex(TestIndexFileDeleter.java:239)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 45 more
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestIndexFileDeleter -Dtests.method=testExcInDeleteFile 
-Dtests.seed=34C743B8DE7186B3 -Dtests.multiplier=3 -Dtests.slow=true 
-Dtests.locale=kde-TZ -Dtests.timezone=Indian/Mauritius -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [junit4] ERROR   0.23s J2 | TestIndexFileDeleter.testExcInDeleteFile <<<
   [junit4]    > Throwable #1: java.io.IOException: Unable to unmap the mapped 
buffer: 
MMapIndexInput(path="/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001/index-MMapDirectory-001/_0.si")
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([34C743B8DE7186B3:D9B7A5DB5D379066]:0)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:384)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.freeBuffer(ByteBufferIndexInput.java:376)
   [junit4]    >        at 
org.apache.lucene.store.ByteBufferIndexInput.close(ByteBufferIndexInput.java:355)
   [junit4]    >        at 
org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
   [junit4]    >        at 
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
   [junit4]    >        at 
org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4815)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4352)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4423)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2876)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2989)
   [junit4]    >        at 
org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2956)
   [junit4]    >        at 
org.apache.lucene.index.RandomIndexWriter.commit(RandomIndexWriter.java:288)
   [junit4]    >        at 
org.apache.lucene.index.TestIndexFileDeleter.testExcInDeleteFile(TestIndexFileDeleter.java:527)
   [junit4]    >        at java.lang.Thread.run(Thread.java:804)
   [junit4]    > Caused by: java.lang.IncompatibleClassChangeError: Found class 
jdk.internal.ref.Cleaner, but interface was expected
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$0(MMapDirectory.java:377)
   [junit4]    >        at java.security.AccessController.doPrivileged(Native 
Method)
   [junit4]    >        at 
org.apache.lucene.store.MMapDirectory.lambda$unmapHackImpl$1(MMapDirectory.java:375)
   [junit4]    >        ... 49 more
   [junit4]   2> NOTE: leaving temporary files on disk at: 
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build/core/test/J2/temp/lucene.index.TestIndexFileDeleter_34C743B8DE7186B3-001
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene60): 
{field=PostingsFormat(name=Memory doPackFST= true), 
id=PostingsFormat(name=Asserting), content=BlockTreeOrds(blocksize=128)}, 
docValues:{}, maxPointsInLeafNode=887, maxMBSortInHeap=5.5268330761426565, 
sim=ClassicSimilarity, locale=kde-TZ, timezone=Indian/Mauritius
   [junit4]   2> NOTE: Linux 3.19.0-51-generic i386/Oracle Corporation 9-ea 
(32-bit)/cpus=12,threads=1,free=131511624,total=321912832
   [junit4]   2> NOTE: All tests run in this JVM: [TestIndexWriterMaxDocs, 
TestMixedCodecs, TestDocumentWriter, TestForUtil, TestTermVectorsReader, 
TestIntsRef, TestIndexInput, TestBlockPostingsFormat, 
TestIndexWriterThreadsToSegments, TestSloppyPhraseQuery, TestCharsRefBuilder, 
TestMultiPhraseEnum, TestPackedTokenAttributeImpl, TestTieredMergePolicy, 
TestIndexWriterMerging, TestIndexWriterOnDiskFull, TestNumericRangeQuery32, 
TestMultiMMap, TestTotalHitCountCollector, TestNIOFSDirectory, TestNorms, 
TestSparseFixedBitDocIdSet, TestMultiLevelSkipList, 
TestFrequencyTrackingRingBuffer, TestIndexCommit, TestIntroSorter, 
TestPrefixQuery, TestCodecHoldsOpenFiles, TestComplexExplanationsOfNonMatches, 
TestCharTermAttributeImpl, TestRollingUpdates, TestCachingCollector, 
TestTryDelete, TestPhrasePrefixQuery, TestLazyProxSkipping, 
TestControlledRealTimeReopenThread, TestPrefixCodedTerms, TestNot, 
TestBufferedChecksum, TestMergeSchedulerExternal, TestFieldReuse, 
TestNumericTokenStream, TestSleepingLockWrapper, TestNoMergeScheduler, 
TestSpanExplanationsOfNonMatches, TestMaxTermFrequency, TestNRTThreads, 
TestReqExclBulkScorer, TestNumericUtils, TestDemo, TestIndexableField, 
Test2BNumericDocValues, TestBufferedIndexInput, TestBooleanOr, 
TestSearchForDuplicates, TestSortedSetSelector, TestConjunctions, 
TestLucene60PointsFormat, TestSearch, TestBooleanRewrites, TestDirectoryReader, 
TestDocBoost, TestCustomSearcherSort, TestDemoParallelLeafReader, 
TestMultiThreadTermVectors, TestAllFilesHaveChecksumFooter, 
TestLucene50TermVectorsFormat, TestMathUtil, Test2BSortedDocValuesOrds, 
TestIndexWriter, TestBytesStore, TestPackedInts, TestAddIndexes, 
TestIndexWriterExceptions, TestDeletionPolicy, TestIndexWriterDelete, 
TestAtomicUpdate, TestIndexWriterCommit, TestDirectoryReaderReopen, 
TestSearchWithThreads, TestConcurrentMergeScheduler, TestTopDocsMerge, 
TestIndexWriterUnicode, TestArrayUtil, TestConsistentFieldNumbers, 
TestBagOfPositions, TestCrash, TestSort, TestFieldsReader, 
TestDocValuesIndexing, TestSimilarityBase, TestBooleanMinShouldMatch, 
TestLegacyNumericUtils, TestUTF32ToUTF8, TestMultiTermConstantScore, 
TestForTooMuchCloning, TestFuzzyQuery, TestWildcard, TestSimilarity2, 
TestExternalCodecs, TestNoDeletionPolicy, TestMultiValuedNumericRangeQuery, 
TestPrefixInBooleanQuery, TestTopDocsCollector, TestSortRandom, 
TestParallelReaderEmptyIndex, TestSumDocFreq, TestSentinelIntSet, 
TestRegexpRandom, TestIndexFileDeleter]
   [junit4] Completed [300/412 (6!)] on J2 in 0.32s, 10 tests, 2 errors <<< 
FAILURES!

[...truncated 402 lines...]
BUILD FAILED
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/build.xml:740: The following 
error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/build.xml:684: The following 
error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/build.xml:59: The following error 
occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/build.xml:50: The 
following error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/common-build.xml:1457: The 
following error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-6.x-Linux/lucene/common-build.xml:1014: 
There were test failures: 412 suites (1 ignored), 3449 tests, 9 errors, 59 
ignored (55 assumptions) [seed: 34C743B8DE7186B3]

Total time: 8 minutes 1 second
Build step 'Invoke Ant' marked build as failure
Archiving artifacts
[WARNINGS] Skipping publisher since build result is FAILURE
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any



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