[jboss-jira] [JBoss JIRA] (LOGMGR-95) Log4j Logger.getParent() inconsistent

[James Perkins (JIRA)]

     [ https://issues.jboss.org/browse/LOGMGR-95?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Perkins updated LOGMGR-95:
--------------------------------
    Git Pull Request: https://github.com/jboss-logging/log4j-jboss-logmanager/pull/9  (was: https://github.com/jboss-logging/log4j-jboss-logmanager/pull/6)


> Log4j Logger.getParent() inconsistent
> -------------------------------------
>
>                 Key: LOGMGR-95
>                 URL: https://issues.jboss.org/browse/LOGMGR-95
>             Project: JBoss Log Manager
>          Issue Type: Bug
>            Reporter: James Livingston
>            Assignee: James Perkins
>
> Log4j Loggers have a getParent() method, whose return value is set up by JBossLogManagerFacade.updateParents(). The method locates the closest parent node which has an existing Log4J logger created *at the time*. This results in the parent being different depending on the order Log4j loggers are used in.
> Consider:
>   Logger.getLogger("a");
>   Logger.getLogger("a.b.c");
>   Logger.getLogger("a.b");
> When the second line causes updateParents() to be called, LoggerNode.getOrCreate() has already created the intermediate "a.b" node. That does not yet have a Log4j Logger created, so the Logger for "a" is returned. Original log4j would have returned "a.b" due to it using the parent structure in the implementation.



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