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Posted to log4j-dev@logging.apache.org by bu...@apache.org on 2007/11/02 21:20:56 UTC
DO NOT REPLY [Bug 40212] - NullPointerException in getLogger when called from ShutdownHook
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------- Additional Comments From digulla@hepe.com 2007-11-02 13:20 -------
I've followed the bugs mentioned there and I concur: log4j is probably being
confused by the Tomcat classloader clearing all static fields on unload.
This also means that the usual setup (one log4j/commons-logging per tomcat and
per webapp) to get logging per webapp is not safe; if we get NPEs after reload,
this means that tomcat somehow mixes different instances of log4j (because after
reload, there shouldn't be *anything* reachable from the last run even if the GC
couldn't throw the classes out, yet).
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