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https://issues.apache.org/jira/browse/TRINIDAD-1649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pavitra Subramaniam updated TRINIDAD-1649:
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Status: Patch Available (was: Open)
> UnsupportedOperationException when rendering 'updates' for the render target
> on postback
> ----------------------------------------------------------------------------------------
>
> Key: TRINIDAD-1649
> URL: https://issues.apache.org/jira/browse/TRINIDAD-1649
> Project: MyFaces Trinidad
> Issue Type: New Feature
> Components: Components
> Affects Versions: 2.0.0-core
> Environment: Running Trinidad 2.0.x; with Facelets; no Partial State
> Saving and using JSF Ajax request rather than the Trinidad PPR mechanism
> Reporter: Pavitra Subramaniam
>
> 1. Download the patch onto your Trinidad 2.0.x branch (minus the
> ResponseWriter class changes). Run the page ajaxPPRDemos.jspx. Click on the
> "Partial Submit" button which posts back to the server using the JSF Ajax
> communication channel rather than the trinidad. Notice the
> UnsupportedOperationException.
> java.lang.UnsupportedOperationException
> at javax.faces.context.ResponseWriter.endCDATA(ResponseWriter.java:212)
> at
> javax.faces.context.ResponseWriterWrapper.endCDATA(ResponseWriterWrapper.java:183)
> at
> javax.faces.context.PartialResponseWriter.endUpdate(PartialResponseWriter.java:208)
> at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit
> (PartialViewContextImpl.java:494)
> at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback
> (PartialVisitContext.java:175)
> at javax.faces.component.UIComponent.visitTree(UIComponent.java:1443)
> at javax.faces.component.UIComponent.visitTree(UIComponent.java:1454)
> 2. It looks like JSF 2.0 added new methods startCDATA() and endCDATA()
> methods, which need to be used by the trinidad ResponseWriterDecorator and
> other implemetations of ResponseWriter.
> 3. the ReponseWriter fixes patch makes the following fixes:
> ResponseWriterDecorator.java (now extends ResponseWriterWrapper. Ideally we
> should remove ResponseWriterDecorator entirely and just use JSF2.0
> ResponseWriterWrapper)
> HtmlResponseWriter.java (overrides 2 new methods sneakily added to
> javax.faces.context.ResponseWriter but never really gives a compilation
> error).
> XmlResponseWriter.java (same as above)
> XhtmlResponseWriter.java (-do-)
> Note that under normal circumstances these exceptions are not seen. Only when
> testing with JSF 2.0 Ajax.
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