Using log4j in User definied Extension Function java class

Hi
I am having a java class where I defined all the user defined XSL Functions.
I used System.out.println for printing.
But I want to use log4j. But when I use this to debug. It is not recognising only.
Could you please tell me why this is not working in this class?
Regards,
Praveena

Hi Anuj,
I can see the below error in the default log file:
09/08/11 16:25:21 log4j:ERROR A "org.apache.log4j.RollingFileAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
09/08/11 16:25:21 log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
09/08/11 16:25:21 log4j:ERROR [global.libraries:1.0] whereas object of type
09/08/11 16:25:21 log4j:ERROR "org.apache.log4j.RollingFileAppender" was loaded by [oracle.bpel.common:10.1.3].
09/08/11 16:25:21 log4j:ERROR Could not instantiate appender named "LOGFILE".
09/08/11 16:25:21 log4j:WARN No appenders could be found for logger (oracle.sample.XSLFunction).
09/08/11 16:25:21 log4j:WARN Please initialize the log4j system properly.
log4j.properties file:
# Set root category priority to INFO and its only appender to CONSOLE.
log4j.rootCategory=INFO, LOGFILE
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.LOGFILE.File= C:/product/10.1.3.1/OracleAS_1/opmn/logs/XSLUtilExten.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.Threshold=INFO,DEBUG
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=<%d>[%t] %p %C: %m%n
log4j.appender.LOGFILE.MaxFileSize=40MB
log4j.appender.LOGFILE.MaxBackupIndex=10
Could you please tell me what is the problem?
Edited by: Jakarta on Aug 11, 2009 4:16 AM

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