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https://issues.apache.org/jira/browse/WW-5646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart updated WW-5646:
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Fix Version/s: 7.3.0
> Modernize path normalization in Include component
> -------------------------------------------------
>
> Key: WW-5646
> URL: https://issues.apache.org/jira/browse/WW-5646
> Project: Struts 2
> Issue Type: Improvement
> Components: Core
> Affects Versions: 7.2.1
> Reporter: Arun Manni
> Priority: Minor
> Fix For: 7.3.0
>
>
> Include.getContextRelativePath() uses java.util.Stack for path
> normalization. Stack is a legacy class (extends synchronized Vector)
> and is unnecessary for a local variable. The method also does not
> handle the edge case where dot-dot segments exceed the available
> path depth, which can cause an EmptyStackException.
> This patch replaces Stack with ArrayDeque, adds an isEmpty() guard
> before pop(), and modernizes the iteration to use an enhanced
> for-loop. Test coverage added for edge case paths.
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