public final class ThreadContextMapFactory extends Object
Log4j can use ThreadLocals, a garbage-free StringMap-based context map can
be installed by setting system property
Furthermore, any custom
ThreadContextMap can be installed by setting system property
log4j2.threadContextMap to the fully qualified class name of the class implementing the
ThreadContextMap interface. (Also implement the
ReadOnlyThreadContextMap interface if your custom
ThreadContextMap implementation should be accessible to applications via the
Instead of system properties, the above can also be specified in a properties file named
log4j2.component.properties in the classpath.
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