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https://issues.apache.org/jira/browse/LOG4J2-1542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15434654#comment-15434654
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Ruben edited comment on LOG4J2-1542 at 8/24/16 10:21 AM:
---------------------------------------------------------
I can confirm this bug, simply log something like:
logger.warn("", exception);
And then in a ListAppender try to receive the event, by calling
getFormattedMessage in the ParameterizedMessage it crashes due to this problem.
A workaround for me is something like:
{quote} if(last.getMessage().getFormat() == null ||
last.getMessage().getFormat().isEmpty()) {
//no message, lets return the exception message
return last.getThrown().getMessage();
} else {
return last.getMessage().getFormattedMessage();
}
{quote}
was (Author: lqbweb):
I can confirm this bug, simply log something like:
logger.warn("", exception);
And then in a ListAppender try to receive the event, by calling
getFormattedMessage in the ParameterizedMessage it crashes due to this problem.
A workaround for me is something like:
if(last.getMessage().getFormat() == null ||
last.getMessage().getFormat().isEmpty()) {
//no message, lets return the exception message
return last.getThrown().getMessage();
} else {
return last.getMessage().getFormattedMessage();
}
> java.lang.ArrayIndexOutOfBoundsException
> ----------------------------------------
>
> Key: LOG4J2-1542
> URL: https://issues.apache.org/jira/browse/LOG4J2-1542
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.6.2
> Environment: Array length logic causes throw
> java.lang.ArrayIndexOutOfBoundsException
> Reporter: Rogério Lecarião Leite
> Priority: Critical
> Labels: easyfix
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> This error is reproducible when method fomarTo of the class
> ParameterizedMessage is invoked.
> This root cause is the method init of same class where is invoked, in the
> this.indices is initializaded with messagePattern.length() >> 1 run to equals
> zero because that messagePattern.length() is 1 (string with one character).
> I used File Appender in my XML config and I wrote my code with
> logger.trace("a").
> My PatternLayout used is pattern="%m" (simplest).
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