Contributed to the junit-team/junit5 repository by implementing support for generic Kotlin inline value classes in parameterized tests, allowing developers to use constructs like kotlin.Result<T> for enhanced type safety and flexibility in test scenarios. The work involved extending JUnit 5’s parameterized testing framework to recognize and handle Kotlin’s inline value classes, while carefully documenting the current limitation regarding primitive-wrapper inline value classes due to type validation constraints. Leveraged Kotlin, JUnit, and advanced testing methodologies to strengthen test coverage for generic code paths. Collaborated across teams, ensuring transparent traceability through signed-off commits and clear documentation of technical decisions and limitations.