How to synchronize a static method?

Question

Java

log4j has a static method - MDC.put(); Which allows you to write and then pull out any data in the logging template. I have a multi-threaded application and therefore MDC.put(); overwrites data by another thread. Is there any way to synchronize this method??

Answer 1

Место вызова MDC.put() в synchronize блок.

Answer 2

странно, вроде бы не должно переписываться ничего, судя по документации:
put(String key, Object o)
Put a context value (the o parameter) as identified with the key parameter into the current thread's context map.
на каждый поток свой контекст