[LUCENE-8933] JapaneseTokenizer creates Token objects with corrupt offsets

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 9.0, 8.3
• Lucene Fields: New
• Assignee: Tomoko Uchida
• Reporter: Adrien Grand
• Created: 24/Jul/19 15:00
• Updated: 15/Sep/24 22:23
• Resolved: 14/Aug/19 03:42

Description

An Elasticsearch user reported the following stack trace when parsing synonyms. It looks like the only reason why this might occur is if the offset of a org.apache.lucene.analysis.ja.Token is not within the expected range.

 

Caused by: java.lang.ArrayIndexOutOfBoundsException
    at org.apache.lucene.analysis.tokenattributes.CharTermAttributeImpl.copyBuffer(CharTermAttributeImpl.java:44) ~[lucene-core-7.6.0.jar:7.6.0 719cde97f84640faa1e3525690d262946571245f - nknize - 2018-12-07 14:44:20]
    at org.apache.lucene.analysis.ja.JapaneseTokenizer.incrementToken(JapaneseTokenizer.java:486) ~[?:?]
    at org.apache.lucene.analysis.synonym.SynonymMap$Parser.analyze(SynonymMap.java:318) ~[lucene-analyzers-common-7.6.0.jar:7.6.0 719cde97f84640faa1e3525690d262946571245f - nknize - 2018-12-07 14:44:48]
    at org.elasticsearch.index.analysis.ESSolrSynonymParser.analyze(ESSolrSynonymParser.java:57) ~[elasticsearch-6.6.1.jar:6.6.1]
    at org.apache.lucene.analysis.synonym.SolrSynonymParser.addInternal(SolrSynonymParser.java:114) ~[lucene-analyzers-common-7.6.0.jar:7.6.0 719cde97f84640faa1e3525690d262946571245f - nknize - 2018-12-07 14:44:48]
    at org.apache.lucene.analysis.synonym.SolrSynonymParser.parse(SolrSynonymParser.java:70) ~[lucene-analyzers-common-7.6.0.jar:7.6.0 719cde97f84640faa1e3525690d262946571245f - nknize - 2018-12-07 14:44:48]
    at org.elasticsearch.index.analysis.SynonymTokenFilterFactory.buildSynonyms(SynonymTokenFilterFactory.java:154) ~[elasticsearch-6.6.1.jar:6.6.1]
    ... 24 more

Issue Links

• links to: GitHub Pull Request #809
• links to: GitHub Pull Request #810
• links to: GitHub Pull Request #830