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Posted to log4j-dev@logging.apache.org by "Remko Popma (JIRA)" <ji...@apache.org> on 2016/09/18 10:37:21 UTC
[jira] [Closed] (LOG4J2-1409) ArrayIndexOutOfBoundsException in
ReusableParameterizedMessage
[ https://issues.apache.org/jira/browse/LOG4J2-1409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Remko Popma closed LOG4J2-1409.
-------------------------------
Resolution: Fixed
> ArrayIndexOutOfBoundsException in ReusableParameterizedMessage
> ---------------------------------------------------------------
>
> Key: LOG4J2-1409
> URL: https://issues.apache.org/jira/browse/LOG4J2-1409
> Project: Log4j 2
> Issue Type: Bug
> Components: API, Core
> Affects Versions: 2.6
> Reporter: Shahan
> Assignee: Remko Popma
> Priority: Critical
> Fix For: 2.6.1
>
>
> A specific set of parameterised logging messages produces an Array Index Out of Bounds exception. It occurs due to the params array (initially set to 10) being reset to a lower number due to a lambda function passed in as an parameter. Then the subsequent logging messages don't reset this number.
> Best to explain in an example:
> {code}
> static Logger logger = LogManager.getLogger();
> public static void main(String[] args) {
> logger.info("Hello {} {} {}", 1, 2,3);
> logger.info("Hello {}", () -> "World");
> logger.info("Hello {}", 1);
>
> // Uncomment out this log event and the params gets reset correctly
> // No exception occurs
> // logger.info("Hello {}", 1);
> // Exception at this log event - as the params is set to 1!
> logger.info("Hello {} {} {}", 1, 2,3);
> }
> {code}
> Work around for this is not to use the ReusableParameterizedMessage. Instead to specify the legacy Message Factory of ParameterizedMessageFactory as a property of the program and no exception occurs.
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