[jira] [Commented] (LOG4J2-962) Main Arguments Lookup not working

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

    [ https://issues.apache.org/jira/browse/LOG4J2-962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14342500#comment-14342500 ] 

Gary Gregory commented on LOG4J2-962:
-------------------------------------

Do you call {{MapLookup.setMainArguments(args);}} as documented on https://logging.apache.org/log4j/2.x/manual/lookups.html#AppMainArgsLookup ?

> Main Arguments Lookup not working
> ---------------------------------
>
>                 Key: LOG4J2-962
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-962
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Lookups
>    Affects Versions: 2.1
>         Environment: Windows 7 x64, Java Batch Application
>            Reporter: Johannes Siebel
>
> It is not possible to use the Main Arguments Lookup in the current version. The "main" prefix is not present in the corresponding Interpolator object and thus the resolution of the variable - e.g. ${main:0} - is not working as advertised in the documentation. As far as I can tell, the problem seems to stem from the PluginManger.collectPlugins-Method that does not acknowledge the existence of the Main Arguments Lookup.
> Following the documentation on the website with the following sample log4j2.xml:
> {code:xml}
> <File name="GLOBAL" fileName="${env:DATA_DIR}/log/${env:APP_NAME}.log" >
>    <PatternLayout pattern="%m%n" header="File: ${main:0}" />
> ...
> {code}



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