During September 2025, Youngyjd developed and delivered a Jetty Server Thread Pool Metrics Exposure feature for the apache/gravitino repository. This work involved instrumenting the Java-based server to expose detailed thread pool metrics, including minimum, maximum, total, busy, idle threads, and queued requests. By integrating these metrics, Youngyjd enhanced the server’s observability, enabling more effective capacity planning and faster detection of overload conditions. The implementation demonstrated backend development skills, deep understanding of Jetty internals, and proficiency in server management. Although no bugs were fixed during this period, the feature contributed meaningful depth to the project’s monitoring and reliability capabilities.