yybmion opened a new pull request, #3810: URL: https://github.com/apache/logging-log4j2/pull/3810
Implements custom `ThreadContextStack` injection capability as requested in #1507. Users can now inject custom `ThreadContextStack` implementations just like `ThreadContextMap`. ## Changes - **ThreadContextStackFactory**: New factory class following existing ThreadContextMapFactory pattern - **Provider class**: Extended with ThreadContextStack support while maintaining backward compatibility - **ThreadContext**: Added `NOOP_STACK` constant and updated initialization logic - **System property support**: `log4j2.threadContextStack=com.example.MyCustomStack` - **Properties file support**: Can be configured in `log4j2.component.properties` ## Checklist ### ✅ Required checks - [x] **License**: I confirm that my changes are submitted under the [Apache License, Version 2.0](https://apache.org/licenses/LICENSE-2.0). - [x] **Commit signatures**: All commits are signed and verifiable. (See [GitHub Docs on Commit Signature Verification](https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification)). - [x] **Code formatting**: The code is formatted according to the project’s style guide. <details> <summary>How to check and fix formatting</summary> - To **check** formatting: `./mvnw spotless:check` - To **fix** formatting: `./mvnw spotless:apply` See [the build instructions](https://logging.apache.org/log4j/2.x/development.html#building) for details. </details> - [x] **Build & Test**: I verified that the project builds and all unit tests pass. <details> <summary>How to build the project</summary> Run: `./mvnw verify` See [the build instructions](https://logging.apache.org/log4j/2.x/development.html#building) for details. </details> ### 🧪 Tests (select one) - [x] I have added or updated tests to cover my changes. - [ ] No additional tests are needed for this change. ### 📝 Changelog (select one) - [x] I added a changelog entry in `src/changelog/.2.x.x`. (See [Changelog Entry File Guide](https://logging.apache.org/log4j/tools/log4j-changelog.html#changelog-entry-file)). - [ ] This is a trivial change and does not require a changelog entry. -- 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: notifications-unsubscr...@logging.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org