Spring Full-Stack Practical Cases

Jun 12, 2024 · Backend Development

Fixing Spring Boot 3 Deadlock: Reproduce, Analyze, and Resolve Custom Event Publishing Issues

This article demonstrates how a custom event published from a constructor in Spring Boot 3.2.5 can cause a deadlock, explains the underlying lock contention, and provides two solutions: using SmartInitializingSingleton to defer publishing and upgrading to Spring 6.2's multithreaded bean initialization.