Xfel opened a new issue, #2020:
URL: https://github.com/apache/logging-log4j2/issues/2020
## Description
RandomAccessFileAppender does not write the header configured in the layout
to the output file.
## Configuration
**Version:** 2.22.0
**Operating system:** Windows 10
**JDK:** Temurin 11.0.16.1
## Reproduction
Using the following log4j2.xml:
```
<Configuration>
<Properties>
<!-- the pattern we use for our log files -->
<Property name="DefaultPattern">%d{DEFAULT} [%-5p] %c{1} -
%m%n</Property>
<!-- a header written of the beginning of every log file -->
<Property name="DefaultHeader">*** HEADER
***${sys:line.separator}</Property>
</Properties>
<Appenders>
<File name="file" fileName="file.log" append="false">
<PatternLayout header="${DefaultHeader}"
pattern="${DefaultPattern}" />
</File>
<RandomAccessFile name="randomaccessfile"
fileName="randomaccessfile.log" append="false">
<PatternLayout header="${DefaultHeader}"
pattern="${DefaultPattern}" />
</RandomAccessFile>
</Appenders>
<Loggers>
<Root level="INFO">
<AppenderRef ref="file" />
<AppenderRef ref="randomaccessfile" />
</Root>
</Loggers>
</Configuration>
```
Combined with a simple program that just logs something, ie:
```
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class Test {
private static final Logger LOG = LogManager.getLogger();
public static void main(String[] args) {
LOG.info("Test");
}
}
```
This creates two files. The file.log is as expected:
```
*** HEADER ***
2023-11-30 16:54:04,898 [INFO ] Test - Test
```
But randomaccessfile.log does not contain the header line:
```
2023-11-30 16:54:04,898 [INFO ] Test - Test
```
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