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https://issues.apache.org/jira/browse/LUCENE-7956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16154154#comment-16154154
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ASF subversion and git services commented on LUCENE-7956:
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Commit 05a1cf696a6379b092c1f9e683f8985ea48ddaca in lucene-solr's branch
refs/heads/branch_7_0 from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=05a1cf6 ]
LUCENE-7956: Make the start offset of codePointBefore explicit.
> ICUNormalizer2CharFilter may fail with a StackOverFlow error
> ------------------------------------------------------------
>
> Key: LUCENE-7956
> URL: https://issues.apache.org/jira/browse/LUCENE-7956
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: 7.0
>
> Attachments: LUCENE-7956.patch
>
>
> ICUNormalizer2CharFilter recursively fills up a buffer of 128 chars until the
> last char is neither a surrogate nor inert. On large inputs of non inert
> characters, this can cause a stack overflow error.
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