Code Mill Hub | Backend Engineering https://code-mill-hub.com/blog/ Deep dives into Java, Spring Boot, and high-performance backend architecture. en-us shflzp12@gmail.com (Maria) shflzp12@gmail.com (Maria) Tue, 02 Jun 2026 00:00:00 GMT https://code-mill-hub.com/blog/spring-boot/2026-06-02-mastering-optimistic-concurrency-event-sourcing-spring-boot/ Ensuring Aggregate Consistency: Mastering Optimistic Concurrency Control in Event-Sourced Spring Boot Microservices https://code-mill-hub.com/blog/spring-boot/2026-06-02-mastering-optimistic-concurrency-event-sourcing-spring-boot/ This deep dive explores how to maintain data integrity and prevent lost updates in event-sourced Spring Boot microservices by implementing robust Optimistic Concurrency Control, a crucial pattern for building resilient and consistent distributed systems. Tue, 02 Jun 2026 00:00:00 GMT shflzp12@gmail.com (Maria) JavaSpring BootEvent SourcingOptimistic LockingMicroservicesConcurrencyJPAKafka