During June 2025, Werner Punz focused on backend development for the apache/myfaces repository, addressing a critical bug affecting AJAX event handling. He implemented a targeted fix in Java and JavaScript to ensure the correct event type was rendered in command script calls, resolving the MYFACES-4719 issue. His approach included integrating server-side Java generation with client-side JavaScript, followed by comprehensive regression testing across related components. By aligning the fix with Jira issue tracking and standard commit practices, Werner improved the reliability of client-side event processing and reduced runtime errors, demonstrating depth in both backend engineering and cross-technology integration.