[jira] [Resolved] (LOG4J2-2809) java.lang.NullPointerException at java9 org.apache.logging.log4j.util.StackLocator.calcLocation()

["Ralph Goers (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralph Goers resolved LOG4J2-2809.
---------------------------------
    Fix Version/s: 2.13.2
       Resolution: Fixed

Patch has been applied. Please verify and close.

> java.lang.NullPointerException at java9 org.apache.logging.log4j.util.StackLocator.calcLocation() 
> --------------------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-2809
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2809
>             Project: Log4j 2
>          Issue Type: Bug
>            Reporter: Andre Elis
>            Assignee: Ralph Goers
>            Priority: Major
>             Fix For: 2.13.2
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> When log() is called from a class using an instance created/stored at ThreadLocal 
>  its StackWalker.StackFrame names changes to "WrappingClass$ClassFromThreadLocal".
> This causes  NPE because walker.walk(LOCATOR) returns null.
> {code:java}
> StackTraceElement element = walker.walk(LOCATOR).toStackTraceElement();
> {code}
> It is suggested to check the result of walk() for null-ness and react in the way different from NPE.



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