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https://issues.apache.org/jira/browse/LOG4J2-377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Remko Popma resolved LOG4J2-377.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0
                   2.0-rc1

Applied the fix described in the comments and the patch.
I haven't been able to test this yet, but the change seems benign so I went 
ahead.

Fixed in revision 1555633.
Please verify and close.

> NPE during shutdown.
> --------------------
>
>                 Key: LOG4J2-377
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-377
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0-beta9
>         Environment: OSGi R5 / R4 (Apache Felix 4.x)
>            Reporter: Roland Weiglhofer
>            Priority: Critical
>             Fix For: 2.0-rc1, 2.0
>
>         Attachments: 0001-Fix-LOG4J2-377.patch
>
>
> NPE in Log4j2-core during shutdown.
> g! Exception in thread "Thread-2" java.lang.NullPointerException
>       at 
> org.apache.felix.framework.BundleWiringImpl.diagnoseClassLoadError(BundleWiringImpl.java:2625)
>       at 
> org.apache.felix.framework.BundleWiringImpl.access$700(BundleWiringImpl.java:75)
>       at 
> org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1967)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>       at 
> org.apache.logging.log4j.core.LoggerContext.stop(LoggerContext.java:210)
>       at 
> org.apache.logging.log4j.core.LoggerContext$ShutdownThread.run(LoggerContext.java:437)
> Exception in thread "Thread-6" java.lang.NullPointerException
>       at 
> org.apache.felix.framework.BundleWiringImpl.diagnoseClassLoadError(BundleWiringImpl.java:2625)
>       at 
> org.apache.felix.framework.BundleWiringImpl.access$700(BundleWiringImpl.java:75)
>       at 
> org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1967)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>       at 
> org.apache.logging.log4j.core.LoggerContext.stop(LoggerContext.java:210)
>       at 
> org.apache.logging.log4j.core.LoggerContext$ShutdownThread.run(LoggerContext.java:437)
> It's a ClassLoader-issue. I guess that log4j2-core uses the 
> bootstrap-classloader but not the bundle-classloaer.



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