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https://issues.apache.org/jira/browse/FOR-955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12624328#action_12624328
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Thorsten Scherler commented on FOR-955:
---------------------------------------

forrest site is failing:
* [1/0]     [0/0]     1.203s 0b      linkmap.html
org.apache.cocoon.sitemap.PatternException: Cannot get variable
'plugin.xmap.output' in expression '{lm:plugin.xmap.output}'
        at
org.apache.cocoon.components.treeprocessor.variables.PreparedVariableResolver.processModule(PreparedVariableResolver.java:262)
        at
org.apache.cocoon.components.treeprocessor.variables.PreparedVariableResolver.resolve(PreparedVariableResolver.java:209)

in forrest run that is no problem.

When debugging the problem it results that in line 161 
parser.parse(new InputSource(source.getInputStream()),handler);
the source.getInputStream() is throwing the exception.

source  SitemapSource  (id=89)  
        environment     MutableEnvironmentFacade  (id=127)      
        exception       null    
        m_logger        LogKitLogger  (id=132)  
        manager CocoonComponentManager  (id=35) 
        mimeType        null    
        needsRefresh    true    
        pipelineProcessor       ConcreteTreeProcessor  (id=67)  
        processingPipeline      CachingProcessingPipeline  (id=134)     
        processKey      EnvironmentDescription  (id=136)        
        processor       TreeProcessor  (id=68)  
        protocol        "cocoon" (id=138)       
        redirectSource  null    
        sourceResolver  null    
        systemId        "cocoon://locationmap.xml" (id=139)     
        systemIdForCaching      
"cocoon://locationmap.xml?pipelinehash=8131474959764425468" (id=140)    
        validity        SitemapSource$SitemapSourceValidity  (id=141)   



> notes for experiment using Cocoon 2.1 branch in Forrest
> -------------------------------------------------------
>
>                 Key: FOR-955
>                 URL: https://issues.apache.org/jira/browse/FOR-955
>             Project: Forrest
>          Issue Type: Task
>          Components: Core operations
>            Reporter: David Crossley
>         Attachments: 955.diff
>
>
> These are the steps to get Forrest running with Cocoon-2.1 rather than the 
> current situation which uses an old Cocoon trunk. Not everything yet works, 
> but enough to give hope. See discussion at:
>  Re: upgrade strategies for our packaged Cocoon
>  http://marc.theaimsgroup.com/?l=forrest-dev&m=116969420304386
> --------------------------
> Steps:
> Revert main/java/org/apache/forrest/util/XPathTransformer.java r111200
> Revert main/java/org/apache/forrest/util/IdGeneratorTransformer.java r111200
> Edit main/webapp/WEB-INF/cocoon.xconf
> to change version attribute to ... cocoon version="2.1"
> Move content of WEB-INF/xconf/forrest-core.xconf into WEB-INF/cocoon.xconf
> Remove the <components> wrapper.
> Build cocoon-branch-2_1_X for the blocks that we use (see our 
> etc/cocoon_upgrade) and replace the jars in lib/core
> --------------------------
> Some results:
> localhost:8888/samples/sample.html ... missing decoration
> localhost:8888/samples/sample.xml ... seems okay
> localhost:8888/samples/sample.pdf ... seems okay
> localhost:8888/index.html ... The requested resource "/index.html" could not 
> be found
> localhost:8888/index.xml ... seems okay
> localhost:8888/index.pdf ... complains about linkmap-index.xml
> localhost:8888/linkmap.html ... The requested resource "/linkmap.html" could 
> not be found

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