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https://issues.apache.org/jira/browse/LOG4J2-3564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Karwasz resolved LOG4J2-3564.
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Resolution: Fixed
> NPE in JULLogger.getLevel()
> ---------------------------
>
> Key: LOG4J2-3564
> URL: https://issues.apache.org/jira/browse/LOG4J2-3564
> Project: Log4j 2
> Issue Type: Bug
> Components: Log4j-to-JUL
> Affects Versions: 2.17.2
> Reporter: Piotr Karwasz
> Priority: Minor
>
> {{JULLogger.getLevel()}} fails with a {{NullPointerException}} if the JUL
> root logger has a {{null}} level. This is a common situation in JDK 8+, since
> {{LogManager$RootLogger}} does not set the log level any more in its
> constructor.
> A practical example where it fails is Tomcat's {{ClassLoaderLogManager}}: cf.
> [BZ 66184|https://bz.apache.org/bugzilla/show_bug.cgi?id=66184].
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