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Posted to notifications@logging.apache.org by "Andre Elis (Jira)" <ji...@apache.org> on 2020/03/23 05:26:00 UTC
[jira] [Updated] (LOG4J2-2809) java.lang.NullPointerException at
java9 org.apache.logging.log4j.util.StackLocator.calcLocation()
[ https://issues.apache.org/jira/browse/LOG4J2-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andre Elis updated LOG4J2-2809:
-------------------------------
Description:
When log() is called from a class using an instance created/stored at ThreadLocal
its StackWalker.StackFrame names changes to "WrappingClass$ClassFromThreadLocal".
This causes to throw NPE because walker.walk(LOCATOR) returns null.
{code:java}
StackTraceElement element = walker.walk(LOCATOR).toStackTraceElement();
{code}
It is suggested to check the result of walk() for null-ness and react in the way different from NPE.
was:
When log() is called from a class using an instance created/stored at ThreadLocal
its StackWalker.StackFrame names changes to "WrappingClass$ClassFromThreadLocal".
This causes to throw 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.
> 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
>
> When log() is called from a class using an instance created/stored at ThreadLocal
> its StackWalker.StackFrame names changes to "WrappingClass$ClassFromThreadLocal".
> This causes to throw 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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