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https://issues.apache.org/jira/browse/LOG4J2-3541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dave Hawkins updated LOG4J2-3541:
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Component/s: Core
> ThreadContextDataInjector Uses Incorrect Providers Under Tomcat
> ---------------------------------------------------------------
>
> Key: LOG4J2-3541
> URL: https://issues.apache.org/jira/browse/LOG4J2-3541
> Project: Log4j 2
> Issue Type: Bug
> Components: Core, Web/Servlet
> Affects Versions: 2.17.1
> Environment: Tomcat 9.0.58 with the following jars in
> ${CATALINA_HOME}/lib:
> log4j-api-2.17.1.jar
> log4j-core-2.17.1.jar
> log4j-jul-2.17.1.jar
> JUL LogManager is org.apache.logging.log4j.jul.LogManager
> Reporter: Dave Hawkins
> Priority: Major
>
> We are using Log4j with tomcat by including it in the boot classpath and
> using Log4jServletContextListener in the web.xml. We are also using the log4j
> JUL LogManager. Web application ContextDataProviders are not being loaded
> correctly.
> I think this is because ThreadContextDataInjector::getServiceProviders is
> sensitive to the web application classpath, but the class, which is shared
> between the web applications and tomcat, statically caches the result. The
> providers list for tomcat is initialized first and is thus incorrectly used
> for the web applications.
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