[xwiki-users] How can I capture an exception that is going to standard out

Ok, I have an exception "java.sql.SQLException: org.apache.commons.dbcp.PoolablePreparedStatement..." that is making it to Tomcat's standard out log (tomcat5-stdout.2011-05-26.log). I've tried everything I can think of in the log4j.properties file to get this exception to either not show up at all or log to a different file. This exception does not have any formatting like is specified in the log4j.properties file. So I don't think it's being logged, so much as just finally falling through and going to stdout. I've spent all dang day trying to find a way to keep this exception from filling my logs, or to figure out why the darn thing is happening in the first place. I've put in a ticket for the exception, but it still hasn't even been picked up yet. I've emailed this list, but no one was able to help. So I just want to log this exception somewhere else so it doesn't complicate my main log file. Can someone explain how to do this? I fancy myself a good programmer, but of all things this is stumping me. Thanks, Lenny