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https://jira.nuxeo.com/browse/NXP-4240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=101699#comment-101699
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Laurent Doguin commented on NXP-4240:
-------------------------------------
backport to 5.2-20081231
http://hg.nuxeo.org/nuxeo/nuxeo-platform/rev/cfe4d718881c
> Fix errors when redirecting to error page when response is already commited
> ---------------------------------------------------------------------------
>
> Key: NXP-4240
> URL: https://jira.nuxeo.com/browse/NXP-4240
> Project: Nuxeo Enterprise Platform
> Issue Type: Bug
> Affects Versions: 5.3 RC
> Reporter: Anahide Tchertchian
> Assignee: Anahide Tchertchian
> Fix For: 5.3 GA
>
>
> Some errors persist in excpetion handling mechanism (see NXP-3428), when mock
> faces context created for error handling is not properly removed from current
> context.
> For instance:
> 1. exception hadling catches an error, for instance:
> Caused by: ClientAbortException: java.net.SocketException: Connection reset
> at
> org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:358)
> 2. error is handled correctly and put in nuxeo-error.log :
> [org.nuxeo.ecm.webapp.shield.SeamExceptionHandlingListener] Created mock
> faces context for exception handling
> 3. Response is already commited => ERROR
> [org.nuxeo.ecm.platform.web.common.exceptionhandling.DefaultNuxeoExceptionHandler]
> Cannot forward to error page: response is already commited
> 4. mock faces context created previously is not cleant up correctly => we get
> additional errors like:
> javax.servlet.ServletException: org.apache.jasper.JasperException: An
> exception occurred processing JSP page /login.jsp at line 206
> ...
> Caused by: java.lang.UnsupportedOperationException
> at
> org.jboss.seam.mock.MockApplication.getELContextListeners(MockApplication.java:93)
> at
> com.sun.faces.el.ELContextListenerImpl.contextCreated(ELContextListenerImpl.java:70)
> ...
> java.lang.NullPointerException
> at
> org.apache.catalina.connector.Request.removeAttribute(Request.java:1354)
> at
> org.apache.catalina.connector.RequestFacade.removeAttribute(RequestFacade.java:514)
> at
> org.jboss.seam.mock.MockExternalContext$2.removeAttribute(MockExternalContext.java:274)
> at
> org.jboss.seam.mock.MockExternalContext$AttributeMap.remove(MockExternalContext.java:471)
> at org.jboss.seam.contexts.BasicContext.remove(BasicContext.java:73)
> at org.jboss.seam.Component.newInstance(Component.java:2070)
> => need to cleanup the mock faces context in any case.
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