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https://issues.apache.org/jira/browse/LOG4J2-302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christian Bindseil closed LOG4J2-302.
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I verified the fix with beta8 - now it works. Thank you.
> NDCPatternConverter broken in beta7
> -----------------------------------
>
> Key: LOG4J2-302
> URL: https://issues.apache.org/jira/browse/LOG4J2-302
> Project: Log4j 2
> Issue Type: Bug
> Components: Layouts
> Affects Versions: 2.0-beta7
> Reporter: Christian Bindseil
> Assignee: Remko Popma
> Fix For: 2.0-beta8
>
> Original Estimate: 0.25h
> Remaining Estimate: 0.25h
>
> After an upgrade from version 2.0-beta4 to beta7 the NDCPatternConverter
> writes an object-ID instead of the content of the NDC-stack.
> We are using an pattern with "[%0.50x]". In beta4 the resulting output looks
> like "[cbi@CE03178]" which means username and machine. Now in beta7 it looks
> like "[logging.log4j.spi.MutableThreadContextStack@875ef7]".
> I analysed the issue in NDCPatternConverter.format(...) method, where
> event.getContextStack() is called and the result is passed to
> StringBuilder.append(...), which means, that the toString()-method will be
> invoked.
> In beta4 getContextStack() returns an instance of ImmutableStack. This class
> inherits its toString() method from AbstractList, where the elements of the
> collection will be formatted human-readable.
> Now in beta7 there comes an instance of MutableThreadContextStack which isn't
> derived from AbstractList but implements the Collection-Interface. The
> toString() method comes from Object and returns the name of the class and an
> object-ID instead of the context of the unterlying stack/collection.
> In my opinion you just need to copy or derive the toString() method from
> AbstractList to solve this issue. Thank you in advance!
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