During December 2024, Yuzhaojing focused on backend development and API refactoring within the apache/hudi repository, addressing a reliability issue in commit timeline calculations. By refining the getCommitsTimelineAfter method to process only completed instants, Yuzhaojing introduced a filter that excludes INFLIGHT or incomplete data, thereby improving the accuracy of timeline computations. This Java-based solution was reinforced with enhanced test coverage, including scenarios with INFLIGHT instants to validate correctness. The work strengthened the reliability of commit histories and timelines, supporting more accurate reporting and analytics for stakeholders. The depth of the fix demonstrated careful attention to data integrity and traceability.