NoClassDefFoundError: org/apache/log4j/LogManager

[yzha]

Hi,

I have a J2EE web Application using Spring 1.1.2. It works fine under Websphere 5.1.2. Now I am trying to upgrade it to Websphere 6. After I deployed the EAR file, in start up, I got the following error.

[11/14/05 11:41:41:205 PST] 0000002e ServletWrappe E SRVE0100E: Did not realize init() exception thrown by servlet Log4JLoader: java.lang.NoClassDefFoundError: org/apache/log4j/LogManager
at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMCon figurator.java:815)
at org.apache.log4j.helpers.FileWatchdog.checkAndConf igure(FileWatchdog.java:80)
at org.apache.log4j.helpers.FileWatchdog.<init>(FileW atchdog.java:49)
at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigu rator.java:807)
at org.apache.log4j.xml.DOMConfigurator.configureAndW atch(DOMConfigurator.java:574)
at org.springframework.util.Log4jConfigurer.initLoggi ng(Log4jConfigurer.java:62)
at org.springframework.web.util.Log4jWebConfigurer.in itLogging(Log4jWebConfigurer.java:97)
at org.springframework.web.util.Log4jConfigServlet.in it(Log4jConfigServlet.java:50)
at javax.servlet.GenericServlet.init(GenericServlet.j ava:256)

Please advise.

Thanks a lot,

Yin

[robh]

Yin,

Do you have two versions of log4j.jar on the classpath? Do you have log4j.jar on the classpath at all?

Rob

[yzha]

Hi Rob,

I have log4j-1.2.8.jar in \WEB-INF\lib.

Thanks,

Yin.