It happens that Log4j, a popular open source logging package for Java, is a good example of a modular design based on orthogonality.

For example, Listing 2’s second line says that the file appender named FILE is an instance of the com.apache.log4j.FileAppender class.

Log4j 2.6, the latest version of the popular logging library for Java, will include a number of configuration options that allows it to run in a completely garbage-free manner. The release follows ...

Apache has released another Log4j version, 2.17.1 fixing a newly discovered remote code execution (RCE) vulnerability in 2.17.0, tracked as CVE-2021-44832. Prior to today, 2.17.0 was the most ...