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From "Marco Tedone" <mted...@jemos.org>
Subject Problem switching to Struts 1.1
Date Mon, 01 Sep 2003 17:21:46 GMT
Hi, I posted this issue to the struts-user list 3 times, but noone replied
to me and frankly I'm beginning to be a little worried. In few words we have
an application which was running fine until struts rc1 but when we switched
to Struts 1.1 the following exceptions is thrown:

<!-- BEGIN OF EXCEPTION -->

javax.servlet.ServletException: Error instantiating servlet class
org.apache.struts.action.ActionServlet
 at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:91
2)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
 at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:
3421)
 at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3609)
 at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:8
21)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)
 at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.j
ava:307)
 at org.apache.catalina.core.StandardHost.install(StandardHost.java:772)
 at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:559
)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:401)
 at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)
 at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)
 at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
t.java:166)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)
 at org.apache.catalina.core.StandardHost.start(StandardHost.java:738)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
 at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347)
 at org.apache.catalina.core.StandardService.start(StandardService.java:497)
 at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)
 at
org.apache.catalina.startup.CatalinaService.start(CatalinaService.java:273)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)
 at
org.apache.catalina.startup.BootstrapService.start(BootstrapService.java:245
)
 at
org.apache.catalina.startup.BootstrapService.main(BootstrapService.java:307)
----- Root Cause -----
java.lang.ExceptionInInitializerError
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
sorImpl.java:39)
 at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
torAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
 at java.lang.Class.newInstance0(Class.java:308)
 at java.lang.Class.newInstance(Class.java:261)
 at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:90
3)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
 at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:
3421)
 at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3609)
 at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:8
21)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)
 at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.j
ava:307)
 at org.apache.catalina.core.StandardHost.install(StandardHost.java:772)
 at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:559
)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:401)
 at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)
 at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)
 at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
t.java:166)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)
 at org.apache.catalina.core.StandardHost.start(StandardHost.java:738)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
 at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347)
 at org.apache.catalina.core.StandardService.start(StandardService.java:497)
 at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)
 at
org.apache.catalina.startup.CatalinaService.start(CatalinaService.java:273)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)
 at
org.apache.catalina.startup.BootstrapService.start(BootstrapService.java:245
)
 at
org.apache.catalina.startup.BootstrapService.main(BootstrapService.java:307)
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException:
java.lang.ClassNotFoundException:
org.apache.commons.logging.impl.Log4jCategoryLog
 at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.ja
va:532)
 at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.ja
va:272)
 at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.ja
va:246)
 at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:395)
 at org.apache.struts.action.ActionServlet.<clinit>(ActionServlet.java:375)
 ... 33 more
Caused by: org.apache.commons.logging.LogConfigurationException:
java.lang.ClassNotFoundException:
org.apache.commons.logging.impl.Log4jCategoryLog
 at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryI
mpl.java:416)
 at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.ja
va:525)
 ... 37 more
Caused by: java.lang.ClassNotFoundException:
org.apache.commons.logging.impl.Log4jCategoryLog
 at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1444)
 at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1289)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:141)
 at
org.apache.commons.logging.impl.LogFactoryImpl$1.run(LogFactoryImpl.java:466
)
 at java.security.AccessController.doPrivileged(Native Method)
 at
org.apache.commons.logging.impl.LogFactoryImpl.loadClass(LogFactoryImpl.java
:454)
 at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryI
mpl.java:406)
 ... 38 more

<!-- ENDOF EXCEPTION -->

The problem seems to be the org.apache.commons.logging.impl.Log4jCategoryLog
class which is not found in the classpath. Now, I had a look at the
commons-logging file and actually there is a similar class called
org.apache.commons.logging.impl.Log4JCategoryLog (please note the capital
'J'). What shall I do then?

Thank for any help,

Marco






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