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https://issues.apache.org/jira/browse/PLUTO-238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David DeWolf resolved PLUTO-238.
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Resolution: Won't Fix
> Wrapping RenderResponse causes ClassCastException
> -------------------------------------------------
>
> Key: PLUTO-238
> URL: https://issues.apache.org/jira/browse/PLUTO-238
> Project: Pluto
> Issue Type: Bug
> Components: portlet container
> Affects Versions: 1.0.1
> Reporter: Eric Dalquist
> Assigned To: Elliot Metsger
> Fix For: 1.0.2
>
> Attachments: CacheManagingDispatcherPortlet.java,
> CachingHttpServletResponse.java, PLUTO238-01.patch
>
>
> I have a portlet that is attempting to wrap the RenderResponse to capture
> data written to the PrintWriter or OutputStream to do some more advanced
> caching. It appears that pluto depends on the implementation of the
> RenderResponse that is passed into the PortletRequestDispatcher. I don't
> think this is required by the portlet specification as the portlet
> request/response objects are defined by interfaces implying the
> implementation should not matter. The stack trace I get is:
> java.lang.ClassCastException:
> edu.wisc.my.portlet.caching.support.CachingRenderResponse
> at
> org.apache.pluto.core.CoreUtils.getInternalResponse(CoreUtils.java:46)
> at
> org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:45)
> at
> org.springframework.web.portlet.DispatcherPortlet.render(DispatcherPortlet.java:948)
> at
> edu.wisc.my.portlet.caching.CacheManagingDispatcherPortlet.render(CacheManagingDispatcherPortlet.java:209)
> at
> org.springframework.web.portlet.DispatcherPortlet.doRenderService(DispatcherPortlet.java:726)
> at
> edu.wisc.my.portlet.caching.CacheManagingDispatcherPortlet.doRenderService(CacheManagingDispatcherPortlet.java:179)
> at
> org.springframework.web.portlet.FrameworkPortlet.processRequest(FrameworkPortlet.java:420)
> at
> org.springframework.web.portlet.FrameworkPortlet.doDispatch(FrameworkPortlet.java:391)
> at javax.portlet.GenericPortlet.render(GenericPortlet.java:178)
> at
> org.apache.pluto.core.PortletServlet.dispatch(PortletServlet.java:205)
> at org.apache.pluto.core.PortletServlet.doGet(PortletServlet.java:145)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at org.apache.pluto.core.PortletServlet.service(PortletServlet.java:140)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
> at
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
> at
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
> at
> org.apache.pluto.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:120)
> at
> org.apache.pluto.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:73)
> at
> org.apache.pluto.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:105)
> at
> org.jasig.portal.channels.portlet.CPortletAdapter.getMarkup(CPortletAdapter.java:690)
> at
> org.jasig.portal.channels.portlet.CPortletAdapter.renderCharacters(CPortletAdapter.java:593)
> at
> org.jasig.portal.MultithreadedCharacterChannelAdapter.renderCharacters(MultithreadedCharacterChannelAdapter.java:41)
> at
> org.jasig.portal.ChannelRenderer$Worker.execute(ChannelRenderer.java:603)
> at org.jasig.portal.utils.threading.BaseTask.run(BaseTask.java:27)
> at
> edu.emory.mathcs.backport.java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:431)
> at
> edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:643)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:668)
> at java.lang.Thread.run(Thread.java:595)
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