Worked on the microsoft/kiota-java repository to enhance the reliability of API retry mechanisms by implementing robust parsing for comma-separated Retry-After header values within the RetryHandler. Leveraging Java and backend development skills, addressed error handling scenarios to ensure accurate computation of retry intervals, reducing the risk of miscalculated backoff times. Added comprehensive unit tests to validate the parsing logic against a variety of valid and invalid inputs, improving test coverage and maintainability. Additionally, performed code formatting cleanup in both the RetryHandler and its associated tests, aligning with coding style guidelines and supporting easier future maintenance and code readability.