During May 2025, Xiadejun focused on backend development and security enhancements for the StarRocks/starrocks repository. He addressed a security vulnerability by implementing a targeted Java bug fix that restricts the root user from accessing or viewing the process list when admin protection is enabled. This change prevents potential leakage of sensitive process information, aligning with the project’s access-control objectives. Xiadejun validated the solution through code reviews and focused testing to ensure no performance regressions. His work demonstrated a careful approach to security and bug resolution, leveraging his expertise in Java and backend systems to improve the project’s overall security posture.