A comprehensive guide covering the migration from JDK 17 to JDK 21, highlighting key benefits like Virtual Threads for improved concurrency and scalability. The article provides a step-by-step technical approach including environment setup, dependency updates, containerization, CI/CD pipeline modifications, and runtime optimization with Generational ZGC. Real-world results show 30% heap usage reduction, stabilized P99 latency, and over 10% infrastructure cost savings for I/O-bound services.
Sort: