TestAddIndexes failures: fnx already written to, cfe file not found [LUCENE-3544]

[asfimport]

fail from hudson

---

Migrated from LUCENE-3544 by Robert Muir (@rmuir)

[asfimport]

Robert Muir (@rmuir) (migrated from JIRA)

Error Message

file "1.fnx" was already written to
Stacktrace

java.io.IOException: file "1.fnx" was already written to
	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:361)
	at org.apache.lucene.index.SegmentInfos.writeGlobalFieldMap(SegmentInfos.java:818)
	at org.apache.lucene.index.SegmentInfos.write(SegmentInfos.java:306)
	at org.apache.lucene.index.SegmentInfos.prepareCommit(SegmentInfos.java:814)
	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:3978)
	at org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:2833)
	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2904)
	at org.apache.lucene.index.IndexWriter.closeInternal(IndexWriter.java:1156)
	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2131)
	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:2054)
	at org.apache.lucene.index.TestAddIndexes.testAddIndexesWithRollback(TestAddIndexes.java:926)
	at org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:615)
	at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:149)
	at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:51)
Standard Output

java.lang.AssertionError: file _98.cfe does not exist
	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:3904)
	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:3951)
	at org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:2833)
	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2904)
	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2886)
	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2870)
	at org.apache.lucene.index.TestAddIndexes$CommitAndAddIndexes3.doBody(TestAddIndexes.java:857)
	at org.apache.lucene.index.TestAddIndexes$RunAddIndexesThreads$1.run(TestAddIndexes.java:673)
Standard Error

NOTE: reproduce with: ant test -Dtestcase=TestAddIndexes -Dtestmethod=testAddIndexesWithRollback -Dtests.seed=-73dd94a0e9dccf3:-2573d9344e91760:-6d2bbb6aea8544a4 -Dtests.multiplier=3
WARNING: test method: 'testAddIndexesWithRollback' left thread running: Thread[Thread-22,5,main]
WARNING: test method: 'testAddIndexesWithRollback' left thread running: Thread[Thread-24,5,main]
WARNING: test method: 'testAddIndexesWithRollback' left thread running: Thread[Thread-26,5,main]
NOTE: test params are: codec=RandomCodecProvider: {id=MockVariableIntBlock(baseBlockSize=91), content=Memory, d=MockSep, c=MockVariableIntBlock(baseBlockSize=91)}, sim=RandomSimilarityProvider(queryNorm=true,coord=false): {id=DFR GZ(0.3), content=DFR I(ne)Z(0.3), d=DFR I(F)BZ(0.3), c=DFR GZ(0.3), foo=IB LL-L3(800.0)}, locale=ru_RU, timezone=Antarctica/McMurdo
NOTE: all tests run in this JVM:
[TestToken, TestAddIndexes]
NOTE: FreeBSD 8.2-RELEASE amd64/Oracle Corporation 1.7.0 (64-bit)/cpus=16,threads=1,free=271923408,total=359137280