commons-logging and log4j outputting log msgs twice

[Ke...@indus.com]

I'm having trouble configuring commons-logging and log4j. I've got it
working as I think I should, but for every log call I am getting 2 lines
output to the log, one using the formatting specified in my appender, and
the other with another format that I am not defining.

Heres my log4j.properties:
log4j.logger.org.apache=WARN

#define logger for kh package
log4j.logger.kh=DEBUG, Console, Rolling

log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.Console.layout.ConversionPattern=%d{ISO8601}   [%C{1}] -
%m%n

log4j.appender.Rolling=org.apache.log4j.RollingFileAppender
log4j.appender.Rolling.File=testlog.log
log4j.appender.Rolling.MaxFileSize=10KB
log4j.appender.Rolling.MaxBackupIndex=1
log4j.appender.Rolling.layout=org.apache.log4j.PatternLayout
log4j.appender.Rolling.layout.ConversionPattern=%d{ISO8601}   [%C{1}] -
%m%n

Heres my commons-logging.properties:
#kh 11/06/02
# commons logging config - use Log4J
org.apache.commons.logging.Log =
org.apache.commons.logging.impl.Log4JCategoryLog

Heres a test app:
package kh;

import org.apache.commons.logging.*;

public class CommonsLoggingExample
      {
      public static void main(String[] args)
            {
            Log log = LogFactory.getLog(CommonsLoggingExample.class);

            log.info("Test info message");
            log.warn("Test warn message");
            log.error("Test error message");
            log.debug("Test debug message");
            }
      }

And heres the output I get to the console:

2002-11-13 10:05:23,711   [CommonsLoggingExample] - Test info message
0 [main] INFO kh.CommonsLoggingExample  - Test info message
2002-11-13 10:05:23,791   [CommonsLoggingExample] - Test warn message
80 [main] WARN kh.CommonsLoggingExample  - Test warn message
2002-11-13 10:05:23,801   [CommonsLoggingExample] - Test error message
90 [main] ERROR kh.CommonsLoggingExample  - Test error message
2002-11-13 10:05:23,801   [CommonsLoggingExample] - Test debug message
90 [main] DEBUG kh.CommonsLoggingExample  - Test debug message

Any idea how I can suppress the log message that are prefixed with '90
[main] ' etc?

Thanks in advance,
Kevin Hooke

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