Chuck,
There are common classes in Tomcat/lib/ but they don't attempt to do
any logging. However, the abc Spring Web application does initialize a
Quartz object which runs once every hour and does some logging. I
don't know if that has any implications.
Thanks,
Joe
Here's the stack trace from catalina.log file...
INFO: Initializing log4j from
[C:\Tomcat6\webapps-abc\ROOT\WEB-INF\classes\log4j.properties]
May 4, 2010 4:06:53 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener
instance of class
org.springframework.web.context.ContextLoaderListener
java.lang.ExceptionInInitializerError
at
org.springframework.web.context.ContextLoaderListener.createContextLoader(ContextLoaderListener.java:53)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:44)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
at
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:556)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:491)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:516)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@20f443 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@20f443 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category))
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at
org.springframework.web.context.ContextLoader.<clinit>(ContextLoader.java:146)
... 26 more
Caused by: org.apache.commons.logging.LogConfigurationException: No
suitable Log constructor [Ljava.lang.Class;@20f443 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413)
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 30 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410)
... 31 more
Here's the stack trace from localhost.log file...
INFO: Initializing log4j from
[C:\Tomcat6\webapps-xyz\ROOT\WEB-INF\classes\log4j.properties]
May 4, 2010 4:06:54 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener
instance of class
org.springframework.web.context.ContextLoaderListener
java.lang.ExceptionInInitializerError
at
org.springframework.web.context.ContextLoaderListener.createContextLoader(ContextLoaderListener.java:53)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:44)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:516)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@e7f6eb for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@e7f6eb for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category))
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at
org.springframework.web.context.ContextLoader.<clinit>(ContextLoader.java:146)
... 26 more
Caused by: org.apache.commons.logging.LogConfigurationException: No
suitable Log constructor [Ljava.lang.Class;@e7f6eb for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413)
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 30 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410)
... 31 more
May 4, 2010 4:06:54 PM org.apache.catalina.core.ApplicationContext log
INFO: Shutting down log4j
>> When I delete c:\Tomcat\lib\log4j-1.2.15.jar, I get Tomcat startup
>> errors (NoClassDefFoundError: org/apache/log4j/Category).
>
> Let's see the complete stack trace for that error.
>
> Do you have other classes in Tomcat's lib directory that are shared by the
> webapps, and do those classes attempt to do logging? Unless you really need
> them to be shared, put those classes in each webapp's WEB-INF/lib or
> WEB-INF/classes directories. Otherwise, you'll need to modify your code and
> have each webapp pass in or otherwise expose its logger to the methods of the
> common classes.
>
> - Chuck
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