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From "Ross Gardler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (FOR-672) Class Cast Exceptionin Views processing
Date Tue, 13 Sep 2005 11:06:54 GMT
     [ http://issues.apache.org/jira/browse/FOR-672?page=all ]

Ross Gardler updated FOR-672:
-----------------------------

    Priority: Trivial  (was: Blocker)

The specific problem in the voice plugin has been resolved (thanks Thorsten) however, the
underlying issue still remains. I'm reducing the priority to trivial, but leaving it open
as this is a very confusin error message and having this in here may help others coming across
the problem.

Sooner or later the problem will be removed as views mature and become independant of the
old skinning system.

> Class Cast Exceptionin Views processing
> ---------------------------------------
>
>          Key: FOR-672
>          URL: http://issues.apache.org/jira/browse/FOR-672
>      Project: Forrest
>         Type: Bug
>   Components: Views
>     Reporter: Ross Gardler
>     Priority: Trivial
>      Fix For: 0.8-dev

>
> I've seen this before with views, but the problem "just disappeared" whilst I was exploring
it. I have no idea why.
> Here's what I did:
> 1) Modified voice plugin to work with views (committed to svn now).
> 2) did forrest run - page rendered but content was missing (mini toc and title were present
though)
> 3) svn up
> 4) build clean
> 5) build
> 6) deployed views plugins with views.sh
> 7) forrest run
> Browser reports:
> Internal Server Error
> Message: null
> Description: No details available.
> Sender: org.apache.cocoon.servlet.CocoonServlet
> error.log shows:
> ERROR   (2005-09-12) 23:55.34:415   [access] (/index.html) PoolThread-4/CocoonServlet:
Internal Cocoon Problem
> org.apache.cocoon.ProcessingException: Failed to process pipeline
> 	at [cause location] - cocoon://prepare.include.xhtml.index:209:77
> 	at <map:serialize type="xml"> - file:/D:/openSource/forrest/build/plugins/org.apache.forrest.plugin.internal.view/internal.xmap:220:34
> 	at <map:serialize type="xhtml"> - file:/D:/openSource/forrest/build/plugins/org.apache.forrest.plugin.output.viewHelper.xhtml/output.xmap:255:36
> 	at <map:transform> - file:/D:/openSource/forrest/build/plugins/org.apache.forrest.plugin.output.viewHelper.xhtml/output.xmap:254:72
> 	at <map:transform> - file:/D:/openSource/forrest/build/plugins/org.apache.forrest.plugin.output.viewHelper.xhtml/output.xmap:251:61
> ....
> Caused by: javax.xml.transform.TransformerException: java.lang.ClassCastException
> 	at org.apache.cocoon.transformation.TraxTransformer.endDocument(Unknown Source)
> 	at org.apache.cocoon.environment.internal.EnvironmentChanger.endDocument(Unknown Source)
> 	at org.apache.cocoon.sitemap.DefaultContentAggregator.generate(Unknown Source)
> 	... 56 more
> Caused by: javax.xml.transform.TransformerException: java.lang.ClassCastException
> 	at org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:293)
> 	at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2336)
> 	at org.apache.xalan.transformer.TransformerImpl.transformToString(TransformerImpl.java:2019)
> 	at org.apache.xalan.templates.ElemAttribute.constructNode(ElemAttribute.java:196)
> ...
> Caused by: java.lang.ClassCastException
> 	at org.apache.xpath.axes.FilterExprIteratorSimple.executeFilterExpr(FilterExprIteratorSimple.java:120)
> 	at org.apache.xpath.axes.FilterExprWalker.setRoot(FilterExprWalker.java:129)
> 	at org.apache.xpath.axes.WalkingIterator.setRoot(WalkingIterator.java:154)
> I've not got time to do further investigation just now, can anyone reproduce this (perhaps
using the voice plugin)

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