4.0.0 com.baeldung.log4j2 log4j2-programmatic-configuration 0.0.1-SNAPSHOT pom simple-configuration set-configuration-factory simple-configurator simple-configuration-xml modify-xml-configuration junit junit 4.12 test org.apache.logging.log4j log4j-core 2.11.0 org.apache.logging.log4j log4j-slf4j-impl 2.11.0