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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