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https://issues.apache.org/jira/browse/LOG4J2-3467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17518282#comment-17518282
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Gary D. Gregory commented on LOG4J2-3467:
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I just need something I can drop in and test, for me, I do not have issues with
this kind of setup where I mix slf4j and log4j api's, all backed by log4j core.
I am assuming you have log4j-slf4j-impl on your class path.
> Update from Log4J 2.17.1 to 2.17.2 breaks application
> -----------------------------------------------------
>
> Key: LOG4J2-3467
> URL: https://issues.apache.org/jira/browse/LOG4J2-3467
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.17.2
> Reporter: Alexander Veit
> Priority: Major
>
> We have an application that uses a third-party library which seems to
> reconfigure Log4J according to its needs. This worked for quite some years
> with various Log4J versions.
> After upgrading from Log4J 2.17.1 to 2.17.2 a call to the library immediately
> stops logging completely in the sense that no further logging is performed
> until restarting the JVM.
> We've tried to identify the change that leads to the problem. Our best guess
> is PropertyConfigurator, line 164 in
> https://github.com/apache/logging-log4j2/commit/73a2cd1cd0e94c7f4f36e4ac9dc72380d30750ef#diff-607596a6cadd10faf2dbeefc4e03092264b8e0dbe23fb89ffa6505d644602c9dR164
> Note that according to semantic versioning such breaking changes should not
> occur when only the patch version is incremented. ;-)
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