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https://issues.apache.org/jira/browse/LUCENE-9856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17306624#comment-17306624
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ASF subversion and git services commented on LUCENE-9856:
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Commit e14a679e908bdb34eb4c677c11b8d0d60ba05dc3 in lucene's branch
refs/heads/jira/LUCENE-9856-static-analysis from Robert Muir
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=e14a679 ]
LUCENE-9856: remove more unused local variables
This fixes all the instances, except for the ones in generated code.
> Improve static analysis to catch dead code and other potential bugs
> -------------------------------------------------------------------
>
> Key: LUCENE-9856
> URL: https://issues.apache.org/jira/browse/LUCENE-9856
> Project: Lucene - Core
> Issue Type: Improvement
> Components: general/build
> Reporter: Zach Chen
> Priority: Minor
> Labels: build
> Attachments: LUCENE-9856.patch
>
>
> When working on PR [https://github.com/apache/lucene/pull/25,] we noticed
> that some dead code is not being caught during static analysis in gradle
> build, such as the *start* variable in the following code:
> [https://github.com/apache/lucene/blob/a5996dbecd4a6b4147d961260711a2cb6aeab3d3/lucene/facet/src/java/org/apache/lucene/facet/FacetsConfig.java#L446-L456]
>
> We may need to look at if additional javac compiler flag, or configuration
> for *error prone,* should be added to catch such bug as well as other
> potential ones.
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