Stop Leaking Trace Context: How to Migrate OpenTelemetry to JDK 26 Scoped Values
If you are still relying on traditional ThreadLocal storage for OpenTelemetry context propagation under JDK 26's virtual threads, you are sitting on a production time bomb. Millions of concurrent virtual threads will quickly turn your heap into a graveyard of leaked trace contexts and bloated memory overhead.
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Why Most Developers Get This Wrong
Defaulting to ThreadLocal: Assuming the default OpenTelemetry ThreadLocal storage works fine with virtual threads, ignoring the heavy heap footprint and context drift when threads are unmounted and rescheduled.
