Affects Version/s: None
Fix Version/s: None
, the MDC map is no longer in InheritableThreadLocal. LOGBACK-620
So when you MDC.put on a thread if you create a new thread from it, the new thread will not receive the value.
I think the
was about not copying the map on each thread creation but only when it the map is modified, but the lost of inherited value was unexpected. LOGBACK-620
If so replacing
will do the fix