How can I use Log4j2 logging on BEAM workers?

I'm trying to use Log4j2 logging implementation together with Slf4j api in the BEAM pipeline. In maven it looks like this:

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.20.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-slf4j2-impl</artifactId>
      <version>2.20.0</version>
    </dependency>

It works fine locally. Also the logging works fine for the container where I start the pipeline. However, inside the workers this setup causes some issues:

Caused by: org.apache.logging.log4j.LoggingException: log4j-slf4j2-impl cannot be present with log4j-to-slf4j

This additional library log4j-to-slf4j is not part of my project and it's not listed in dependencies (also not in transitive dependencies). Looks like it's added by BEAM sdk itself. The question is: how can I configure BEAM to use my version of Log4j?

When we generate a Beam project with 2.47.0 version using the Maven archetype :

mvn archetype:generate \
    -DarchetypeGroupId=org.apache.beam \
    -DarchetypeArtifactId=beam-sdks-java-maven-archetypes-examples \
    -DarchetypeVersion=2.47.0 \
    -DgroupId=org.example \
    -DartifactId=word-count-beam \
    -Dversion="0.1" \
    -Dpackage=org.apache.beam.examples \
    -DinteractiveMode=false

It generate the project with the following dependencies in the pom.xml file :

<properties>
      <beam.version>2.47.0</beam.version>
      <slf4j.version>1.7.30</slf4j.version>
</properties>

<dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
       <version>${slf4j.version}</version>
</dependency>

<dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-jdk14</artifactId>
       <version>${slf4j.version}</version>
       <!-- When loaded at runtime this will wire up slf4j to the JUL backend -->
       <scope>runtime</scope>
</dependency>

Then in the code, you use SL4J as usual in Java projects :

public class TeamLeagueApp {
    private static final Logger LOGGER = LoggerFactory.getLogger(TeamLeagueApp.class);

    ....
    LOGGER.info("My log");

I recommend you using the dependencies and version brought by Beam natively to handle logs, in order to prevent some dependencies conflicts and issues.

So the solution is easy. Looks like BEAM uses slf4j v1 libs so these dependencies work fine with it and use log4j2 as a backend for logging:

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-slf4j-impl</artifactId>
      <version>${log4j.version}</version>
    </dependency>