1 - Create an application that uses apache commons to log, for example: import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class AppConfig { private static final Log logger = LogFactory.getLog(AppConfig.class); …. logger.info(…) } 2 - create two logging profiles: app1.war Logging-Profile: app1-logging app2.war Logging-Profile: app2-logging Actual results: app1.war writes a log messages with category a.b.c, the ROOT-logger from the logging-profile app1-logging handles the message after that app2.war writes a log message with the same category a.b.c, this message is also handled by the ROOT-logger from the logging-profile app1-logging and not, as expected, by the ROOT-logger from logging-profile app2-logging Expected results: app1.war writes logs to app1-logging logging profile log file app2.war writes logs to app2-logging logging profile log file