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From "Gabriel Gruber (JIRA)" <j...@apache.org>
Subject [jira] Created: (COCOON-2277) NPE in DynamicURLStreamHandlerFactory (Cocoon JNET)
Date Wed, 03 Feb 2010 07:33:19 GMT
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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