AW: FileAppender is not assignable to Appender
My guess: there are two log4j.jar, probably of different versions: one in the parent classlaoder and one in the child classloader. Therefore java regards these two as different classes. Heri -Ursprüngliche Nachricht- Von: chrisgage [mailto:chrisg...@bellsouth.net] Gesendet: Mittwoch, 28. Oktober 2009 14:53 An: log4j-user@logging.apache.org Betreff: FileAppender is not assignable to Appender With an application we have been running in production, we recently added some jar files from another department's application in order to have the wto apps communicate. Since then we have been getting the following error in the log at application startup. It does not appear to cause log4j to stop working, it's just a worrying thing to see in the log. I am using log4j as a black box at the simplest possible level, so this message is completely incomprehensible to me, and it gives no stack trace or other indication where the problem is occurring. log4j:ERROR A org.apache.log4j.FileAppender object is not assignable to a org.apache.log4j.Appender variable. log4j:ERROR The class org.apache.log4j.Appender was loaded by log4j:ERROR [ com.ibm.ws.classloader.compoundclassloa...@d940d94 Local ClassPath: ... Delegation Mode: PARENT_FIRST] whereas object of type log4j:ERROR org.apache.log4j.FileAppender was loaded by [ com.ibm.ws.classloader.compoundclassloa...@8060806 Local ClassPath: ... Delegation Mode: PARENT_FIRST]. log4j:ERROR Could not instantiate appender named SPRINGLOG. Actually this set of messages occurs twice, once for FileAppender and the repeated almost identically for ConsoleAppender. -- View this message in context: http://www.nabble.com/FileAppender-is-not-assignable-to-Appender-tp26095007p26095007.html Sent from the Log4j - Users mailing list archive at Nabble.com. - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
Re: AW: FileAppender is not assignable to Appender
That was what I thought originally. But that isn't it... The jars we added definitely do not contain a log4j.jar, (I have checked the source and unzipped the jar files to be sure) and the only one in the workspace is log4j-1.2.15.jar in the lib folder of the EAR project. And all the jar manifests of the component projects point to lib/log4j-1.2.15.jar. We use IBM RAD7 and WebSphere 6.1. Bender Heri wrote: My guess: there are two log4j.jar, probably of different versions: one in the parent classlaoder and one in the child classloader. Therefore java regards these two as different classes. Heri -Ursprüngliche Nachricht- Von: chrisgage [mailto:chrisg...@bellsouth.net] Gesendet: Mittwoch, 28. Oktober 2009 14:53 An: log4j-user@logging.apache.org Betreff: FileAppender is not assignable to Appender With an application we have been running in production, we recently added some jar files from another department's application in order to have the wto apps communicate. Since then we have been getting the following error in the log at application startup. It does not appear to cause log4j to stop working, it's just a worrying thing to see in the log. I am using log4j as a black box at the simplest possible level, so this message is completely incomprehensible to me, and it gives no stack trace or other indication where the problem is occurring. A org.apache.log4j.FileAppender object is not assignable to a org.apache.log4j.Appender variable. The class org.apache.log4j.Appender was loaded by com.ibm.ws.classloader.compoundclassloa...@d940d94 Local ClassPath: ... Delegation Mode: PARENT_FIRST whereas object of type org.apache.log4j.FileAppender was loaded by com.ibm.ws.classloader.compoundclassloa...@8060806 Local ClassPath: ... Delegation Mode: PARENT_FIRST. Could not instantiate appender named SPRINGLOG. Actually this set of messages occurs twice, once for FileAppender and the repeated almost identically for ConsoleAppender. -- View this message in context: http://www.nabble.com/FileAppender-is-not-assignable-to-Appender-tp26095007p26112525.html Sent from the Log4j - Users mailing list archive at Nabble.com. - To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
