The log4j companions page is giving a 404 error.  I was attempting to see what all is in the org.apache.log4j.rolling.RollingFileAppender class per the comments in http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/RollingFileAppender.html but the companions Javadocs are at the 404ed portion of the site (e.g. http://logging.apache.org/log4j/companions/extras/apidocs/org/apache/log4j/rolling/RollingFileAppender.html).  This section is also referenced in a link at the top of http://logging.apache.org/log4j/2.x/.