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https://issues.apache.org/jira/browse/LUCENE-8933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16894298#comment-16894298
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Tomoko Uchida edited comment on LUCENE-8933 at 7/27/19 6:33 AM:
{quote}Should we go further and check that the concatenation of the segments is
equal to the surface form?
{quote}
+1
I will open two pull requests.
- For master branch: Add a equality check between surface form and its
segmentation.
- For 8x branch: Add a length check to avoid annoying runtime exceptions, in
other words, "if the (concatenated) segment is longer than its surface form,
throw exception when loading a user dictionary".
was (Author: tomoko uchida):
{quote}Should we go further and check that the concatenation of the segments is
equal to the surface form?
{quote}
+1
I will open two pull requests.
- For master branch: Add a equality check between surface form and its
segmentation.
- For 8x branch: Add a length check to avoid annoying runtime exceptions, in
other words, "if the segmentation is longer than surface form, throw exception
when loading a user dictionary".
> JapaneseTokenizer creates Token objects with corrupt offsets
>
>
> Key: LUCENE-8933
> URL: https://issues.apache.org/jira/browse/LUCENE-8933
> Project: Lucene - Core
> Issue Type: Bug
>Reporter: Adrien Grand
>Priority: Minor
>
> 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.
>
> {noformat}
> 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
> {noformat}
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