Log4j with AS 10g problems

I am trying to troubleshoot a log4j on AS 10g problem. An application that logs as configured in JDeveloper's embedded OC4J does not log properly when deployed to AS 10g. Using Enterprise Manager, I have found that some log messages are actually getting written to the "redirected output/errors" log file, but that these messages do not include the applications DEBUG level logger calls. I figure that this is because the log4j.properties file is not getting discovered by log4j even though it is in the WEB-INF/classes directory (standard location). So, to find out where log4j was looking and why it wasn't finding the log4j.properties file, I tried adding the log4j debug property (-Dlog4j.debug=true) to the Server Properties:Command Line Options:Java Options field in Enterprise Manager. After restarting the OC4J instance and hitting the app, I searched all log files for log4j's debug info and it doesn't appear anywhere. I tested this property in JDeveloper's embedded OC4J and it works as expected.
Can anyone offer advice on how to troubleshoot this series of log4j on AS 10g problems?
Thanks,
Jeff

Jeff:
We have a similar problem where log4j behaves differently in jdev(10.1.2) vs. OC4J standalone(10.1.2). The difference lies in our FileAppender output. In JDev, the file logging works properly. However, in OC4J standalone, the log file created is always a 0 byte file.
I know the logging is working because I'm sending it to the ConsoleAppender and see it in the redirected log.
Any idea what could be happening?
Thanks,
Mike

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