Worked on the GoogleCloudDataproc/hadoop-connectors repository, focusing on a critical bug fix to improve the accuracy of Hierarchical Namespace (HN) bucket status determination. Refactored the isHnBucket logic to utilize the Apiary client, aligning the check more closely with storage layout APIs and enhancing integration with cloud storage systems. Developed comprehensive unit tests in Java to cover both positive and negative HN bucket scenarios, increasing reliability and regression safety. By expanding test coverage and adopting an API-driven approach, the work reduced deployment risk and improved maintainability, laying a foundation for future enhancements involving API integration and cloud storage management.