During December 2024, Xu focused on improving code quality in the luoyuxia/fluss repository by addressing a critical naming inconsistency in the round-robin assignment strategy. Xu identified and corrected a typo, renaming the class from RoundRabinBucketAssigner to RoundRobinBucketAssigner throughout the Java codebase. This targeted bug fix, delivered as a rapid hotfix, enhanced code readability and ensured consistent naming conventions for downstream clients. Xu’s work centered on bug fixing and refactoring, prioritizing maintainability and developer clarity over new feature development. The update reduced potential confusion for users and contributed to a more reliable and maintainable codebase moving forward.