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https://issues.apache.org/jira/browse/LOG4J2-1687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15728656#comment-15728656
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Robert Christiansen commented on LOG4J2-1687:
---------------------------------------------
Fix verified with build from git master on staging servers.
> NPE in ThrowableProxy when resolving stack in Java EE/OSGi environment
> ----------------------------------------------------------------------
>
> Key: LOG4J2-1687
> URL: https://issues.apache.org/jira/browse/LOG4J2-1687
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.7
> Environment: - java version "1.7.0_80" ,Java(TM) SE Runtime
> Environment (build 1.7.0_80-b15), Java HotSpot(TM) 64-Bit Server VM (build
> 24.80-b11, mixed mode)
> - Jboss EAP 5.2.0-EAP
> Reporter: Robert Christiansen
> Assignee: Gary Gregory
> Labels: easyfix
> Fix For: 2.8
>
> Attachments: LOG4J2-1687.patch, error.log, patch.diff
>
>
> NPE when logging in Java EE/OSGi environment.
> In some cases the ClassLoader (
> https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#getClassLoader()
> ) will be null for a Class.
> With the changes introduced in
> https://issues.apache.org/jira/browse/LOG4J2-1457 logging with %xEx can cause
> a NullPointerExeception when trying to resolve the stack.
> Since it's not a common occurrence in most environments I suggest the
> ThrowableProxy swallow the NPE in the same way it swallows SecurityExeception
> and other classloading exceptions to avoid extra branching for all
> environments.
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