DRAFT KB-XXXX Log4j Warnings Logged as Errors on Application Server Startup

Symptoms

On JBoss start up, the following errors are printed

ERROR [stderr] (MSC service thread 1-1) log4j:WARN No appenders could be found for logger (org.apache.commons.configuration.PropertiesConfiguration).
ERROR [stderr] (MSC service thread 1-1) log4j:WARN Please initialize the log4j system properly.
ERROR [stderr] (MSC service thread 1-1) log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Cause

These set of errors show ERROR by the timestamp, but further into the message it shows as WARN under log4j. These are just warnings regarding a specific logger, org.apache.commons. PropertiesConfiguration which are false errors and can be safely ignored as they do not negatively impact the system. The reference number for this issue is AN-89706.

Affected Versions

This article applies to all versions of Appian.