Virtual Threads

[mrguamos]

Since java 21 is out, do you have plans on replacing ThreadLocal with ScopedValue for virtual threads?

[sopgreg]

We would also welcome this change.

We have some callback classes which as injected as CDI beans and are shared across a common thread pool. When logging via MDC, the context is therefore leaking into other callback calls.

Our workaround is a try-with-resources like adapter which closes/clears the MDC when finishing the callback method. This would be much simpler and consise when using a ScopedValue for this purpose.