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From "Steve Rowe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-7442) MinHashFilter.FixedSizeTreeSet.add() calls SortedSet.last() without first testing for emptiness, under which condition NoSuchElementException is thrown
Date Fri, 09 Sep 2016 23:04:20 GMT
Steve Rowe created LUCENE-7442:
----------------------------------

             Summary: MinHashFilter.FixedSizeTreeSet.add() calls SortedSet.last() without
first testing for emptiness, under which condition NoSuchElementException is thrown
                 Key: LUCENE-7442
                 URL: https://issues.apache.org/jira/browse/LUCENE-7442
             Project: Lucene - Core
          Issue Type: Bug
          Components: modules/analysis
            Reporter: Steve Rowe


My Jenkins found this reproducing branch_6x seed:

{noformat}
   [junit4] Suite: org.apache.lucene.analysis.core.TestRandomChains
   [junit4]   2> Exception from random analyzer: 
   [junit4]   2> charfilters=
   [junit4]   2> tokenizer=
   [junit4]   2>   org.apache.lucene.analysis.standard.StandardTokenizer()
   [junit4]   2> filters=
   [junit4]   2>   org.apache.lucene.analysis.minhash.MinHashFilter(ValidatingTokenFilter@6ae99167
term=,bytes=[],startOffset=0,endOffset=0,positionIncrement=1,positionLength=1,type=word, 5,
5, -3, true)
   [junit4]   2>   org.apache.lucene.analysis.bg.BulgarianStemFilter(ValidatingTokenFilter@40844352
term=,bytes=[],startOffset=0,endOffset=0,positionIncrement=1,positionLength=1,type=word,keyword=false)
   [junit4]   2> offsetsAreCorrect=true
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestRandomChains -Dtests.method=testRandomChainsWithLargeStrings
-Dtests.seed=4733E677EBDC28FC -Dtests.slow=true -Dtests.locale=ar-OM -Dtests.timezone=Atlantic/South_Georgia
-Dtests.asserts=true -Dtests.file.encoding=UTF-8
   [junit4] ERROR   3.18s J4 | TestRandomChains.testRandomChainsWithLargeStrings <<<
   [junit4]    > Throwable #1: java.util.NoSuchElementException
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([4733E677EBDC28FC:2D685966B292080F]:0)
   [junit4]    > 	at java.util.TreeMap.key(TreeMap.java:1323)
   [junit4]    > 	at java.util.TreeMap.lastKey(TreeMap.java:297)
   [junit4]    > 	at java.util.TreeSet.last(TreeSet.java:401)
   [junit4]    > 	at org.apache.lucene.analysis.minhash.MinHashFilter$FixedSizeTreeSet.add(MinHashFilter.java:325)
   [junit4]    > 	at org.apache.lucene.analysis.minhash.MinHashFilter.incrementToken(MinHashFilter.java:159)
   [junit4]    > 	at org.apache.lucene.analysis.ValidatingTokenFilter.incrementToken(ValidatingTokenFilter.java:67)
   [junit4]    > 	at org.apache.lucene.analysis.bg.BulgarianStemFilter.incrementToken(BulgarianStemFilter.java:48)
   [junit4]    > 	at org.apache.lucene.analysis.ValidatingTokenFilter.incrementToken(ValidatingTokenFilter.java:67)
   [junit4]    > 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkResetException(BaseTokenStreamTestCase.java:405)
   [junit4]    > 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:510)
   [junit4]    > 	at org.apache.lucene.analysis.core.TestRandomChains.testRandomChainsWithLargeStrings(TestRandomChains.java:959)
   [junit4]    > 	at java.lang.Thread.run(Thread.java:745)
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene62): {dummy=Lucene50(blocksize=128)},
docValues:{}, maxPointsInLeafNode=252, maxMBSortInHeap=5.297834377897023, sim=ClassicSimilarity,
locale=ar-OM, timezone=Atlantic/South_Georgia
   [junit4]   2> NOTE: Linux 4.1.0-custom2-amd64 amd64/Oracle Corporation 1.8.0_77 (64-bit)/cpus=16,threads=1,free=395080152,total=465567744
   [junit4]   2> NOTE: All tests run in this JVM: [TestDecimalDigitFilterFactory, TestMultiWordSynonyms,
TestReversePathHierarchyTokenizer, TestDoubleEscape, TestHunspellStemFilterFactory, TestArabicNormalizationFilter,
TestUAX29URLEmailAnalyzer, TestSwedishLightStemFilterFactory, TestBulgarianStemmer, TestASCIIFoldingFilter,
TestDelimitedPayloadTokenFilterFactory, TestIndonesianStemmer, TestCircumfix, EdgeNGramTokenFilterTest,
TestPatternTokenizer, TestScandinavianFoldingFilter, TestIgnore, TestRandomChains]
   [junit4] Completed [130/272 (1!)] on J4 in 9.85s, 2 tests, 1 error <<< FAILURES!
{noformat}



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