In July 2025, Shinkwang worked on the apache/tomcat repository, focusing on improving the accuracy of Tomcat cluster documentation. Addressing Bug 69747, Shinkwang updated the cluster HOWTO guide to reflect the replacement of StaticMembershipInterceptor with StaticMembershipService, ensuring that documentation matched recent Java code changes. This targeted bug fix reduced the risk of user misconfiguration and helped streamline support by providing clear, up-to-date guidance for cluster setup. Shinkwang’s work emphasized careful documentation practices and precise bug fixing, demonstrating attention to detail and a strong understanding of Tomcat’s clustering architecture and Java-based configuration management within open source environments.