https://logging.apache.org/log4j/2.x/manual/api.html
https://logging.apache.org/log4j/2.x/log4j-api/apidocs/
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/LoggerContext.html
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/config/package-summary.html
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/config/ConfigurationFactory.html
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/config/Configurator.html
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/config/Configuration.html