Cannot run Junit Test. [LUCENE-7879]

We built lucene using ant, opened the project on eclipse and ran Junit tests. Some tests are successful but alot of the tests report an exception. For example, running Junit test on TestIndexWriter.java produces

- "An SPI class of type org.apache.lucene.codecs.Codec with name 'Asserting' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [Lucene60, Lucene62, SimpleText, Lucene70]".\*

Does anyone have a good idea about why most of the unit tests are not successful for us on eclipse?

The whole error message in console is:

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNRTAfterCommit -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testManySeparateThreads -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testCloseWhileMergeIsRunning -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testChangesAfterClose -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testUnlimitedMaxFieldLength -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testStopwordsPosIncHole2 -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
jun 14, 2017 6:59:22 PM com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
ADVERTENCIA: Uncaught exception in thread: Thread[Thread-102,5,TGRP-TestIndexWriter]
java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.Codec with name 'Asserting' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [Lucene60, Lucene62, SimpleText, Lucene70]
at __randomizedtesting.SeedInfo.seed([74868B172C079B1F]:0)
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.Codec.forName(Codec.java:116)
at org.apache.lucene.index.SegmentInfos.readCodec(SegmentInfos.java:419)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:358)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:293)
at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:529)
at org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:300)
at org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:865)
at org.apache.lucene.util.IOUtils.close(IOUtils.java:89)
at org.apache.lucene.util.IOUtils.close(IOUtils.java:76)
at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1104)

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testThreadInterruptDeadlock -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDoBeforeAfterFlush -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEmptyDocAfterFlushingRealDoc -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDontInvokeAnalyzerForUnAnalyzedFields -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testIndexStoreCombos -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEmptyFieldNameTerms -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
CheckIndex failed
ERROR: could not read any segments file in directory
java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.Codec with name 'Asserting' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [Lucene60, Lucene62, SimpleText, Lucene70]
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.Codec.forName(Codec.java:116)
at org.apache.lucene.index.SegmentInfos.readCodec(SegmentInfos.java:419)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:358)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:293)
at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:529)
at org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:300)
at org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:285)
at org.apache.lucene.util.TestUtil.checkIndex(TestUtil.java:281)
at org.apache.lucene.index.TestIndexWriter.testNoUnwantedTVFiles(TestIndexWriter.java:1494)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1713)
at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:907)
at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:943)
at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:957)
at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:916)
at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:802)
at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:852)
at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:863)
at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
at java.lang.Thread.run(Thread.java:745)

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNoUnwantedTVFiles -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testCommitImmediatelyAfterNRTReopen -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testOnlyUpdateDocuments -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testIds -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEnablingNorms -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testStopwordsPosIncHole -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNullDocuments -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNegativePositions -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testVariableSchema -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testWickedLongTerm -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
jun 14, 2017 6:59:22 PM com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
ADVERTENCIA: Uncaught exception in thread: Thread[Lucene Merge Thread #0,5,TGRP-TestIndexWriter]
org.apache.lucene.index.MergePolicy$MergeException: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapDocFreqInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at __randomizedtesting.SeedInfo.seed([74868B172C079B1F]:0)
at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:683)
Caused by: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapDocFreqInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:289)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:372)
at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:113)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:78)
at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:143)
at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:681)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4289)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3933)
at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:661)

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testMaxThreadPriority -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testFlushWithNoMerging -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDeleteUnusedFiles -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEmptyFieldNameWithEmptyTerm -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testCloseThenRollback -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNullAnalyzer -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testHasUncommittedChanges -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEmptyFieldName -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testHighFreqTerm -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testEmptyNorm -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testMergeAllDeleted -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
jun 14, 2017 6:59:23 PM com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
ADVERTENCIA: Uncaught exception in thread: Thread[Lucene Merge Thread #0,5,TGRP-TestIndexWriter]
org.apache.lucene.index.MergePolicy$MergeException: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapDocFreqInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at __randomizedtesting.SeedInfo.seed([74868B172C079B1F]:0)
at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:683)
Caused by: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapDocFreqInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:289)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:372)
at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:113)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:78)
at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:143)
at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:681)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4289)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3933)
at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:661)

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testSmallRAMBuffer -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNoDocsIndex -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testPositionIncrementGapEmptyField -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testCreateWithReader -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testChangingRAMBuffer2 -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDeleteSameTermAcrossFields -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNullDocument -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testNRTSegmentsFile -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
jun 14, 2017 6:59:23 PM com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
ADVERTENCIA: Uncaught exception in thread: Thread[Lucene Merge Thread #0,5,TGRP-TestIndexWriter]
org.apache.lucene.index.MergePolicy$MergeException: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapFixedInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at __randomizedtesting.SeedInfo.seed([74868B172C079B1F]:0)
at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:703)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:683)
Caused by: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'LuceneVarGapFixedInterval' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [BlockTreeOrds, BloomFilter, Direct, FSTOrd50, FST50, Memory, Lucene50, IDVersion, completion]
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:289)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:372)
at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:113)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:78)
at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:143)
at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:681)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4289)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3933)
at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:661)

NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testChangingRAMBuffer -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDeadlock -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testBadSegment -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testOtherFiles -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDeleteUnusedFiles2 -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testIterableThrowsException -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDocCount -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testHasUncommittedChangesAfterException -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testDoubleClose -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testChangeIndexOptions -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter -Dtests.method=testIterableFieldThrowsException -Dtests.seed=74868B172C079B1F -Dtests.locale=es-EC -Dtests.timezone=PRT -Dtests.asserts=true -Dtests.file.encoding=UTF-8
NOTE: leaving temporary files on disk at: /private/var/folders/bq/6581ndfs35lgqhzdy5wfj4d80000gn/T/lucene.index.TestIndexWriter_74868B172C079B1F-001
NOTE: test params are: codec=Asserting(Lucene70): {=PostingsFormat(name=Asserting), a=PostingsFormat(name=LuceneVarGapDocFreqInterval), c=FST50, string=FST50, foo=PostingsFormat(name=LuceneVarGapFixedInterval), body=PostingsFormat(name=LuceneVarGapFixedInterval), content=PostingsFormat(name=LuceneVarGapDocFreqInterval), str=PostingsFormat(name=LuceneVarGapDocFreqInterval), tvtest=PostingsFormat(name=Asserting), field=PostingsFormat(name=LuceneVarGapFixedInterval), str3=PostingsFormat(name=LuceneVarGapFixedInterval), content4=PostingsFormat(name=LuceneVarGapDocFreqInterval), binary=FST50, str2=PostingsFormat(name=LuceneVarGapDocFreqInterval), content1=PostingsFormat(name=Asserting), id=FST50, myfield=PostingsFormat(name=LuceneVarGapFixedInterval)}, docValues:{binarydv=DocValuesFormat(name=Asserting), dv=DocValuesFormat(name=Direct), sortedsetdv=DocValuesFormat(name=Asserting), sortednumericdv=DocValuesFormat(name=Direct), numericdv=DocValuesFormat(name=Asserting), sorteddv=DocValuesFormat(name=Asserting)}, maxPointsInLeafNode=1898, maxMBSortInHeap=6.970399710826445, sim=RandomSimilarity(queryNorm=false): {=DFR I(n)BZ(0.3), c=DFR GL1, string=DFR I(ne)L1, body=DFR I(n)1, content=IB LL-D3(800.0), str=DFR GL2, tvtest=DFR I(n)B2, field=DFR GLZ(0.3), content4=DFR I(n)3(800.0), binary=IB SPL-D2, str2=DFR GZ(0.3), content1=DFR GZ(0.3), id=DFR I(n)B2, myfield=LM Jelinek-Mercer(0.700000)}, locale=es-EC, timezone=PRT
NOTE: Mac OS X 10.11.3 x86_64/Oracle Corporation 1.8.0_111 (64-bit)/cpus=8,threads=1,free=145826072,total=163577856
NOTE: All tests run in this JVM: [TestIndexWriter]

---
Migrated from [LUCENE-7879](https://issues.apache.org/jira/browse/LUCENE-7879) by Jaewoo Kim (@jaywoo123), updated Jun 15 2017
Environment:
```
MacOS
```

Start by reproducing the reported Eclipse failure with TestIndexWriter.java, then compare it with the listed ant test command. Investigate the test runtime classpath and the missing Codec and PostingsFormat SPI entries. Done means the affected JUnit tests run without these missing-SPI exceptions.

Written by the indexing model from the issue text.