[LUCENE-8676] TestKoreanTokenizer#testRandomHugeStrings failure

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.7, 8.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Jim Ferenczi
• Created: 31/Jan/19 20:43
• Updated: 28/Aug/22 15:41
• Resolved: 01/Feb/19 10:40

Description

KoreanTokenizer#testRandomHugeString failed in CI with the following exception:

  [junit4]    > Throwable #1: java.lang.AssertionError
   [junit4]    >        at __randomizedtesting.SeedInfo.seed([8C5E2BE10F581CB:90E6857D4E833D83]:0)
   [junit4]    >        at org.apache.lucene.analysis.ko.KoreanTokenizer.add(KoreanTokenizer.java:334)
   [junit4]    >        at org.apache.lucene.analysis.ko.KoreanTokenizer.parse(KoreanTokenizer.java:707)
   [junit4]    >        at org.apache.lucene.analysis.ko.KoreanTokenizer.incrementToken(KoreanTokenizer.java:377)
   [junit4]    >        at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkAnalysisConsistency(BaseTokenStreamTestCase.java:748)
   [junit4]    >        at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:659)
   [junit4]    >        at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:561)
   [junit4]    >        at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:474)
   [junit4]    >        at org.apache.lucene.analysis.ko.TestKoreanTokenizer.testRandomHugeStrings(TestKoreanTokenizer.java:313)
   [junit4]    >        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> NOTE: leaving temporary files

I am able to reproduce locally with:

ant test  -Dtestcase=TestKoreanTokenizer -Dtests.method=testRandomHugeStrings -Dtests.seed=8C5E2BE10F581CB -Dtests.multiplier=2 -Dtests.nightly=true -Dtests.slow=true -Dtests.linedocsfile=/home/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-7.7/test-data/enwiki.random.lines.txt -Dtests.locale=uk-UA -Dtests.timezone=Europe/Istanbul -Dtests.asserts=true -Dtests.file.encoding=ISO-8859-1

After some investigation I found out that the position of the buffer is not updated when the maximum backtrace size is reached (1024).