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https://issues.apache.org/jira/browse/LOG4J2-2951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ralph Goers resolved LOG4J2-2951.
---------------------------------
Fix Version/s: 2.15.0
Resolution: Fixed
A patch has been applied. Please verify and close.
> Properties are not resolved with Log4J1 configuration
> -----------------------------------------------------
>
> Key: LOG4J2-2951
> URL: https://issues.apache.org/jira/browse/LOG4J2-2951
> Project: Log4j 2
> Issue Type: Bug
> Components: log4j 1.2 emulation
> Affects Versions: 2.13.3
> Reporter: Thomas Hackel
> Assignee: Ralph Goers
> Priority: Major
> Fix For: 2.15.0
>
>
> When using the log4j 1.2 emulation, the resolution of variables in the
> log4j.properties does not work.
> {code:java}
> ...
> maxbackupindex=20
> log4j.appender.RFA=org.apache.log4j.RollingFileAppender
> log4j.appender.RFA.MaxBackupIndex=${maxbackupindex}
> ...
> {code}
> I've also created a sample project which shows the problem:
> [https://github.com/thackel/log4j2-legacy-test]
> The log4j1 initialization (using system property) works and the property file
> is read automatically from the classpath, just the variable substitution does
> not work.
> Whats interesting that there is an existing Testcase in Log4J, which shows
> that it somehow works:
> [Log4j1ConfigurationFactoryTest.java
> |https://github.com/apache/logging-log4j2/blob/log4j-2.13.3/log4j-1.2-api/src/test/java/org/apache/log4j/config/Log4j1ConfigurationFactoryTest.java#L159]with
> its
> [log4j.properties|https://github.com/apache/logging-log4j2/blob/log4j-2.13.3/log4j-1.2-api/src/test/resources/config-1.2/log4j-RollingFileAppender-with-props.properties].
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