Spring Full-Stack Practical Cases
May 28, 2026 · Backend Development
5 Advanced Techniques to Preserve Context in Spring Boot Async Calls
In Spring Boot 3.5.0, asynchronous threads lose MDC, security, and request data because ThreadLocal is not shared; the article demonstrates five concrete solutions—including InheritableThreadLocal, thread joining, custom TaskDecorator, Spring Security delegating wrappers, and MDC propagation—each with code samples, pitfalls, and best‑practice warnings.
AsyncInheritableThreadLocalMDC
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