Nikunj Agarwal focused on stabilizing test infrastructure in large Java projects, addressing non-deterministic behavior in both the apache/hive and INRIA/spoon repositories. He implemented deterministic field and import ordering, specifically sorting fields in the Serde layer of Hive and imports in Spoon, to eliminate flaky test failures and improve CI reliability. Using Java, refactoring, and testing skills, Nikunj’s targeted patches ensured reproducible test outcomes and accelerated development feedback cycles. His work reduced maintenance overhead by aligning test logic to deterministic patterns, demonstrating a deep understanding of test reliability and infrastructure in complex codebases without introducing new features during this period.