Hi Earwin, As this error occurs directly inside the HashMap and so is Java's code, I think this is a) an error in Java's HashMap implementation (haha, unlikely). But I tend to say, Java's HashMap is correct... b) missing synchronization around the HashMap, so it is modified at the same time. So either we should use a Collections.synchronizedMap() here or somehow control synchronization in a different way.
Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Earwin Burrfoot [mailto:ear...@gmail.com] > Sent: Saturday, May 16, 2009 11:10 AM > To: java-dev@lucene.apache.org > Subject: Random test failure > > Running latest lucene trunk with some patches applied, but they do not > touch IndexWriter and friends anywhere. > Happened once, I failed to reproduce it, with and without patches. > > Java(TM) SE Runtime Environment (build 1.6.0_07-b06-153) > Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_07-b06-57, mixed mode) > > [junit] Testsuite: org.apache.lucene.index.TestOmitTf > [junit] Tests run: 5, Failures: 1, Errors: 0, Time elapsed: 0.708 sec > [junit] > [junit] ------------- Standard Error ----------------- > [junit] Exception in thread "Lucene Merge Thread #0" > org.apache.lucene.index.MergePolicy$MergeException: > java.lang.ArrayIndexOutOfBoundsException: 36 > [junit] at > org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(Conc > urrentMergeScheduler.java:351) > [junit] at > org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(Concurren > tMergeScheduler.java:315) > [junit] Caused by: java.lang.ArrayIndexOutOfBoundsException: 36 > [junit] at java.util.HashMap.getEntry(HashMap.java:345) > [junit] at java.util.HashMap.containsKey(HashMap.java:335) > [junit] at java.util.HashSet.contains(HashSet.java:184) > [junit] at > org.apache.lucene.store.MockRAMDirectory.createOutput(MockRAMDirectory.jav > a:212) > [junit] at > org.apache.lucene.index.FormatPostingsPositionsWriter.<init>(FormatPosting > sPositionsWriter.java:42) > [junit] at > org.apache.lucene.index.FormatPostingsDocsWriter.<init>(FormatPostingsDocs > Writer.java:55) > [junit] at > org.apache.lucene.index.FormatPostingsTermsWriter.<init>(FormatPostingsTer > msWriter.java:33) > [junit] at > org.apache.lucene.index.FormatPostingsFieldsWriter.<init>(FormatPostingsFi > eldsWriter.java:59) > [junit] at > org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:485) > [junit] at > org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:140) > [junit] at > org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4808) > [junit] at > org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4425) > [junit] at > org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeSc > heduler.java:235) > [junit] at > org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(Concurren > tMergeScheduler.java:291) > [junit] ------------- ---------------- --------------- > [junit] Testcase: testBasic(org.apache.lucene.index.TestOmitTf): FAILED > [junit] ConcurrentMergeScheduler hit unhandled exceptions > [junit] junit.framework.AssertionFailedError: ConcurrentMergeScheduler > hit unhandled exceptions > [junit] at > org.apache.lucene.util.LuceneTestCase.tearDown(LuceneTestCase.java:55) > [junit] > [junit] > [junit] Test org.apache.lucene.index.TestOmitTf FAILED > > > -- > Kirill Zakharenko/Кирилл Захаренко (ear...@gmail.com) > Home / Mobile: +7 (495) 683-567-4 / +7 (903) 5-888-423 > ICQ: 104465785 > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-dev-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org
