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https://issues.apache.org/jira/browse/COCOON-2277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12912692#action_12912692
]
Sands Fish commented on COCOON-2277:
------------------------------------
For reference, here is the mailing list suggestion:
http://mail-archives.apache.org/mod_mbox/cocoon-users/201002.mbox/%[email protected]%3e
> NPE in DynamicURLStreamHandlerFactory (Cocoon JNET)
> ---------------------------------------------------
>
> Key: COCOON-2277
> URL: https://issues.apache.org/jira/browse/COCOON-2277
> Project: Cocoon
> Issue Type: Bug
> Components: * Cocoon Core, - Servlet service framework
> Affects Versions: 2.2-dev (Current SVN)
> Reporter: Gabriel Gruber
> Priority: Critical
>
> From time to time after more heavy of our cocoon 2.2 based application (which
> is not yet in production) I am getting this exception from cocoon jnet. after
> this exception occurs we have to restart the web application as this
> exception keeps coming and noone can do anything with the webapp....
> java.lang.NullPointerException
> java.util.LinkedList.remove(LinkedList.java:646)
> java.util.LinkedList.remove(LinkedList.java:360)
>
> org.apache.cocoon.jnet.DynamicURLStreamHandlerFactory.pop(DynamicURLStreamHandlerFactory.java:30)
>
> org.apache.cocoon.jnet.URLHandlerFactoryCollector.popUrlHandlerFactories(URLHandlerFactoryCollector.java:57)
>
> org.apache.cocoon.jnet.URLHandlerFactoryCollector.installURLHandlers(URLHandlerFactoryCollector.java:39)
> sun.reflect.GeneratedMethodAccessor516.invoke(Unknown Source)
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> java.lang.reflect.Method.invoke(Method.java:585)
>
> org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:627)
>
> org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:616)
>
> org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:64)
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>
> org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> $Proxy34.service(Unknown Source)
>
> org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:481)
>
> org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:455)
>
> org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:245)
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> $Proxy94.service(Unknown Source)
>
> org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>
> org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
> *NOTE* that another open source project reported similar problems:
> http://jira.dspace.org/jira/browse/DS-253?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel
>
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