Hello,
I have a problem with shutting down log4j2 in a Java EE environment, which does
not include servlets.
Currently my code for shutting down log4j2 is located in a Singleton Startup
Bean in a @PreDestroy annotated method.
@PreDestroy
public static void shutDown() {
LogManager.shutdown();
}
This did not work however. It looks like the log4j is shutting down only to be
started up again.
This restart prevents our application from undeploying, leaving all the loaded
classes on the server.
My current assumption is the restart happens, because of something in our
application is calling LogManager.getLogger(clazz) after LogManager.shutdown()
is called.
Therefore we came up with this workaround:
@PreDestroy
public static void shutDown() {
org.apache.logging.log4j.LogManager.shutdown();
Configurator.reconfigure(new NullConfiguration());
Server.unregisterMBeans();
}
It prevents the instantiation of the appenders and async loggers and replacing
the current config with a NullConfiguration.
The restart still takes place, but it does not prevent the undeplyoment any
more (when getting rid of existing MBeans).
Is there a more elegant solution, maybe getting rid of the restart in the first
place?
Best regards
Rene Schindler
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