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• A. slf4j: SLF4J is not the same thing as Log4J. The former is an abstraction for various logging frameworks, which includes the ability to interface with Log4J, IF used (which it doesn't based on the results). To state it another way, SLF4J is an interface for logging. It comes with an interface for log4j that allows applications to use log4j (for more details see: https://www.slf4j.org/legacy.html ).

• B. *log4j-appender-3.2.1.jar : This is a feature for streaming log4j logs to Kafka. Syndeia is not using this feature. It is available but unless there is a log4j jar included, it is not of much use (see Stream Log4j Logs to Apache Kafka | DevGlan & Log4j -- Log4j 2 Appenders - Apache Log4j 2 for more info)

Reload4J Usage

Reload4J is a drop-in-replacement initiative that was started by the community to address the security issues found in older versions of Log4J and continue maintenance of the code base for projects/software that aren’t ready to switch to newer versions of Log4J yet, ex: Log4J2.

A direct download for it can be found at the Maven Repository site: https://repo1.maven.org/maven2/ch/qos/reload4j/reload4j/. Select a version and then click on the link that says jar (file size)

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