elharo opened a new pull request, #402: URL: https://github.com/apache/maven-help-plugin/pull/402
**Problem:** `help:evaluate` fails on Java 18+ when evaluating expressions that return `Properties` subclasses (e.g. `project.properties` after `effective-pom` replaces them with `SortedProperties`). The custom XStream `PropertiesConverter` used exact class match (`Properties.class == type`), so subclasses fall through to `SerializableConverter`, which tries to reflectively access `java.util.Hashtable.table` — forbidden by the Java module system. **Fix:** Changed `Properties.class == type` to `Properties.class.isAssignableFrom(type)` in `canConvert()`, so all `Properties` subclasses are handled by the converter that simply copies entries into a `TreeMap`, avoiding reflection on `Hashtable`. Fixes #166 -- 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]
