Xiaolin Talks Programming

Jul 27, 2026 · Backend Development

Spring Boot + Drools: Production-Grade Hot Reload & Memory-Safe Rule Engine Integration

This article details how to integrate Drools with Spring Boot for complex business decisions, covering architecture design, hot-reload implementation using AtomicReference and KieContainer disposal, memory leak prevention, stateless session best practices, conflict detection via AgendaEventListener, and production observability with trace logging and dry-run sandboxes.