sounds like a classloading effect. 

Have a look to the classloader hierarchy

Here is a good doc:
http://download.oracle.com/docs/cd/E12840_01/wls/docs103/programming/classloading.html

Especially this one : Resource Loading Order 
http://download.oracle.com/docs/cd/E12840_01/wls/docs103/programming/classloading.html#wp1097288

François


Le 12 mars 2010 à 17:30, Igor Vaynberg a écrit :

> ive seen this once before on the list. also with weblogic i think.
> search the list.
> 
> -igor
> 
> On Fri, Mar 12, 2010 at 3:16 AM, Xavier López <xavil...@gmail.com> wrote:
>> Hi,
>> 
>> From time to time I see the following error in my deployed application's
>> log. The application is running clustered on Weblogic 9.2 MP3.
>> 
>> It seems to be messing up with the classloading of class mypackage.MyClass
>> (this error comes up in many different classes). I can guess from the stack
>> trace that something is going wrong maybe serializing that page, it can be
>> seen that the class name is being messed with some content of the page (div
>> tags, text displayed in the page,...).
>> 
>> Has anyone been in this situation before ? Any tip on how to address the
>> issue ?
>> 
>> 2010-03-11 22:31:10,506 ERROR ap16_s1_IX_II [[ACTIVE] ExecuteThread: '2' for
>> queue: 'weblogic.kernel.Default (self-tuning)']
>> org.apache.wicket.request.target.resource.SharedResourceRequestTarget
>> 579910|vJS0LZhR01NKqxLWh6QbpWm77g3jHJ96Y4GYV6KB996NfHnHLb5t!-619140133!
>> 1268343057...@192.168.131.142 - unable to lazily register shared resource
>> mypackage.MyClass%20fi%20usuari%20--%3E%20%20%3C/div%3E%3Cdiv%20id=
>> java.lang.ClassNotFoundException:
>> mypackage.MyClass-%20fi%20usuari%20--%3E%20%20%3C
>>    at
>> weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:289)
>>    at
>> weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:262)
>>    at
>> weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:54)
>>    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>>    at
>> weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:161)
>>    at
>> weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:35)
>>    at
>> org.apache.wicket.application.DefaultClassResolver.resolveClass(DefaultClassResolver.java:103)
>>    at
>> org.apache.wicket.request.target.resource.SharedResourceRequestTarget.respond(SharedResourceRequestTarget.java:149)
>>    at
>> org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:104)
>>    at
>> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1181)
>>    at org.apache.wicket.RequestCycle.step(RequestCycle.java:1252)
>>    at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1353)
>>    at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
>>    at
>> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:355)
>>    at
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:200)
>>    at mypacakge.MyFilter.doFilter(ANetFilter.java:37)
>>    at
>> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
>>    at
>> weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3242)
>>    at
>> weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
>>    at
>> weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
>>    at
>> weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2010)
>>    at
>> weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1916)
>>    at
>> weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1366)
>>    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
>>    at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
>> 2010-03-11 22:31:10,511 ERROR ap16_s1_IX_II [[ACTIVE] ExecuteThread: '2' for
>> queue: 'weblogic.kernel.Default (self-tuning)']
>> org.apache.wicket.request.target.resource.SharedResourceRequestTarget
>> 579910|vJS0LZhR01NKqxLWh6QbpWm77g3jHJ96Y4GYV6KB996NfHnHLb5t!-619140133!
>> 1268343057...@192.168.131.142 - shared resource
>> mypackage.MyClass-%20fi%20usuari%20--%3E%20%20%3C/div%3E%3Cdiv%20id= not
>> found
>> 
>> Thanks,
>> Xavier
>> 
> 
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