arunmanni-ai opened a new pull request, #1780:
URL: https://github.com/apache/struts/pull/1780

   The path normalization logic in Include.getContextRelativePath() used the 
   legacy java.util.Stack class and did not handle the edge case where 
   dot-dot segments exceed the available path depth.
   
   This patch:
   - Replaces java.util.Stack with ArrayDeque (recommended since JDK 6)
   - Adds an isEmpty() guard before pop() to handle excess dot-dot gracefully
   - Uses enhanced for-loop instead of indexed elementAt() iteration
   - Adds test coverage for edge case dot-dot paths


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