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https://issues.apache.org/jira/browse/LOG4J2-1527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15425176#comment-15425176
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ASF GitHub Bot commented on LOG4J2-1527:
----------------------------------------
GitHub user leonj1 opened a pull request:
https://github.com/apache/logging-log4j2/pull/39
LOG4J2-1527 - Add a null check in getFormattedMessage and initialize when
needed
One way to see this problem is by changing
"GcFreeLoggingTestUtil.executeLogging()"
from: System.setProperty("log4j2.is.webapp", "false");
to: System.setProperty("log4j2.is.webapp", "true");
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/leonj1/logging-log4j2
bugfix_prevent_npe_on_getFormattedMessage
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/logging-log4j2/pull/39.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #39
----
commit c5430dbb2c14cf8753439cf331991187ce4d164d
Author: Jose Leon <jleo...@bloomberg.net>
Date: 2016-08-17T18:54:43Z
LOG4J2-1527 - Add a null check in getFormattedMessage and initialize when
needed
----
> NPE thrown when log4j2 used within a webapp and RingBufferLogEvent's
> getFormattedMessage() is called.
> -----------------------------------------------------------------------------------------------------
>
> Key: LOG4J2-1527
> URL: https://issues.apache.org/jira/browse/LOG4J2-1527
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.6.2
> Reporter: Jose Leon
>
> This happens because 'messageText' is never initialized, therefore "return
> messageText.toString();" throws the NPE.
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