[jira] [Resolved] (LOG4J2-3247) PropertiesConfiguration.parseAppenderFilters NPE when parsing properties file filters

["Gary D. Gregory (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary D. Gregory resolved LOG4J2-3247.
-------------------------------------
    Fix Version/s: 2.16.1
       Resolution: Fixed

Fixed in git {{release-2.x}} branch.

> PropertiesConfiguration.parseAppenderFilters NPE when parsing properties file filters
> -------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-3247
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3247
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Configurators
>    Affects Versions: 2.16.0
>            Reporter: Fábio Constantino
>            Priority: Blocker
>             Fix For: 2.16.1
>
>
> When parsing appender filters configured in the properties file for example:
> {code:java}
> log4j.appender.LOG_REQUEST_START_DB=my.appender.class
> log4j.appender.LOG_REQUEST_START_DB.filter.ID=my.filter.class{code}
> a NullPointerException is thrown on line 564 of org.apache.log4j.config.PropertiesConfiguration. The _next_ variable is always _null_ at that point, from what appears to be a bug in the _if_ condition above (looks like it should be _head == null_ instead of {_}head != null{_}).
>  
> Note: this is using the log4j1.compatibility=true property



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