During December 2025, Huang Runxingxing focused on backend development for the apache/dolphinscheduler repository, addressing a critical bug related to Aliyun OSS cloud storage integration. He improved the reliability of storage operations by refining directory marker handling, which resolved resource validation errors and prevented duplicate folder listings within OSS-backed workflows. Using Java, he stabilized code paths associated with OSS storage, reducing inconsistencies and enhancing the integrity of storage operations. His work included explicit commit traceability, supporting better observability and accountability. Although the period did not involve new feature development, his targeted fix demonstrated depth in cloud storage and backend engineering.