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Posted to notifications@logging.apache.org by "Carter Kozak (Jira)" <ji...@apache.org> on 2021/06/04 15:31:00 UTC
[jira] [Closed] (LOG4J2-3103) ComodificationException in concurrent
access to LoggerContext::stop
[ https://issues.apache.org/jira/browse/LOG4J2-3103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Carter Kozak closed LOG4J2-3103.
--------------------------------
> ComodificationException in concurrent access to LoggerContext::stop
> -------------------------------------------------------------------
>
> Key: LOG4J2-3103
> URL: https://issues.apache.org/jira/browse/LOG4J2-3103
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.14.1
> Reporter: Mike
> Assignee: Carter Kozak
> Priority: Major
> Fix For: 2.15.0
>
>
> Mostly just happens in integration tests, but if two concurrent processes both attempt to stop and add new shutdown listeners at the same time, you can see the following exception:
> {code}
> Caused by: java.util.ConcurrentModificationException
> at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
> at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
> at org.apache.logging.log4j.core.LoggerContext.stop(LoggerContext.java:405)
> at org.apache.logging.log4j.core.async.AsyncLoggerContext.stop(AsyncLoggerContext.java:106)
> at com.palantir.sls.logging.log4j.service.Log4jServiceLogging.shutdown(Log4jServiceLogging.java:152)
> at com.palantir.witchcraft.logging.log4j.Log4jLoggingFramework.shutdown(Log4jLoggingFramework.java:124)
> at com.palantir.witchcraft.logging.log4j.Log4jLoggingFramework.initialize(Log4jLoggingFramework.java:59)
> at com.palantir.witchcraft.logging.LoggingFrameworks.initialize(LoggingFrameworks.java:41)
> at com.palantir.witchcraft.logging.Logging.configureDefault(Logging.java:76)
> {code}
> Proposed fix: https://github.com/apache/logging-log4j2/pull/508
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