rootvector2 opened a new pull request, #740: URL: https://github.com/apache/commons-collections/pull/740
`UnmodifiableMultiValuedMap.asMap()` wraps only the outer map in `UnmodifiableMap`, so the value collections it hands out through `get`, `getOrDefault`, `values()`, `entrySet()` and `forEach` are still the live views of the decorated map, and `unmodifiable.asMap().get(key).clear()` edits or empties the backing map while `unmodifiable.get(key)` correctly throws. `asMap()` now returns a read-only view that wraps each value collection as unmodifiable and keeps its `List` or `Set` type, so `equals`, `hashCode` and `containsValue` still agree with plain lists and sets. Found by probing every `Unmodifiable` decorator's nested views for mutators that reach the delegate; these `asMap()` routes were the only ones that did. - [x] Read the [contribution guidelines](CONTRIBUTING.md) for this project. - [x] Read the [ASF Generative Tooling Guidance](https://www.apache.org/legal/generative-tooling.html) if you use Artificial Intelligence (AI). - [x] I used AI to create any part of, or all of, this pull request. Which AI tool was used to create this pull request, and to what extent did it contribute? Claude Code (Anthropic) was used for the whole change: it found the issue, wrote the fix and the regression test, and ran the reproducer and the full default Maven goal. - [x] Run a successful build using the default [Maven](https://maven.apache.org/) goal with `mvn`; that's `mvn` on the command line by itself. - [x] Write unit tests that match behavioral changes, where the tests fail if the changes to the runtime are not applied. This may not always be possible, but it is a best practice. - [x] Write a pull request description that is detailed enough to understand what the pull request does, how, and why. - [x] Each commit in the pull request should have a meaningful subject line and body. Note that a maintainer may squash commits during the merge process. -- 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]
