gnodet opened a new pull request, #12927: URL: https://github.com/apache/maven/pull/12927
## Summary Backport of #12832 to `maven-3.10.x`. - Switch `ProjectIndex` backing maps from `HashMap` to `ConcurrentHashMap` to fix root cause of index corruption under parallel builds (`-T`) - Add null guards for both `indices` and `projects` lookups with enriched error messages mentioning parallel builds and extensions as possible causes ## Test plan - [ ] CI green 🤖 Generated with [Claude Code](https://claude.com/claude-code) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
