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https://issues.apache.org/jira/browse/LOG4J2-3564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17608512#comment-17608512
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ASF subversion and git services commented on LOG4J2-3564:
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Commit c07927c112e2fa622a4087d5283841dc77c82fbe in logging-log4j2's branch
refs/heads/dependabot/maven/org.apache.maven.plugins-maven-assembly-plugin-3.4.2
from Piotr P. Karwasz
[ https://gitbox.apache.org/repos/asf?p=logging-log4j2.git;h=c07927c112 ]
[LOG4J2-3564] Missing changelog
> 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
> Fix For: 2.19.0
>
>
> {{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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