Worked on the grpc/grpc-java repository to enhance xDS stability and efficiency by addressing a bug related to DiscoveryRequests in Java-based backend systems. Implemented logic to skip sending DiscoveryRequests for resource types not subscribed to on a given server, aligning grpc-java’s Aggregated Discovery Service stream behavior with grpc-go. This approach reduced unnecessary control-plane load and improved stream resilience, particularly in federation scenarios involving authority-specific servers. The solution included comprehensive unit tests in ControlPlaneClientTest to validate streamReady behavior under various subscription states. Utilized Java and gRPC, focusing on backend development practices and thorough documentation to ensure reliable EDS data delivery.