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https://issues.apache.org/jira/browse/LUCENE-8175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16414805#comment-16414805
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ASF subversion and git services commented on LUCENE-8175:
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Commit 43796e516932881da7abbc8cc379ec2661020f7e in lucene-solr's branch
refs/heads/branch_7x from [~rcmuir]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=43796e5 ]
LUCENE-8175: upgrade icu4j to 61.1 which fixes concurrency issue
> ICUTokenizer might return corrupt tokens due to concurrency bug in ICU4J
> ------------------------------------------------------------------------
>
> Key: LUCENE-8175
> URL: https://issues.apache.org/jira/browse/LUCENE-8175
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Priority: Critical
> Fix For: trunk, 7.4
>
> Attachments: LUCENE-8175.patch
>
>
> I was digging some test failures with {{testRandomHugeStrings}} that occurred
> since the upgrade to ICU4J 60.2 which happen to boil down to this bug:
> http://bugs.icu-project.org/trac/ticket/13512 which is fixed but not released
> yet.
> In short an int[] is shared across several threads while it shouldn't. As a
> consequence, ICUTokenizer may sometimes return corrupt tokens. I pinged on
> the issue to know when a release fixing this bug is expected.
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