[jira] [Resolved] (LOG4J2-3202) Only allow lookups in message, not in parameters.

["Carter Kozak (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-3202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carter Kozak resolved LOG4J2-3202.
----------------------------------
    Fix Version/s: 2.15.0
       Resolution: Duplicate

This is resolved in the pending 2.15.0 release. Note that we aren't supporting lookups in the message or parameters, as it's less obvious than doing the lookup in code.

> Only allow lookups in message, not in parameters.
> -------------------------------------------------
>
>                 Key: LOG4J2-3202
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3202
>             Project: Log4j 2
>          Issue Type: Improvement
>            Reporter: InkerBot
>            Priority: Minor
>             Fix For: 2.15.0
>
>
> For example, If someone named "${java:os}", he registered an account, I want to log it.
>  
> {code:java}
> import org.apache.logging.log4j.LogManager
> fun main() {
>   val logger = LogManager.getLogger("ww")
>   val username = "\${java:os}"
>   logger.error("username: {}",username)
> } {code}
>  
> I want "username: ${java:os}", but got "username: Mac OS X 10.16, architecture: x86_64-64"
> If it is possible, could I have a flag to only lookup in message?



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