Re: Stacktrace when trying to use XPath

Thursday, September 3, 2009, 6:04:21 PM, Newman, John W wrote:

> Ok, I reluctantly added jaxen 1.1.1 to the classpath and also
> turned on NodeModel.useJaxenXPathSupport() and it is working nicely now.  =)
>  
> I first tried changing the xalan version to 2.7.1 but still no
> luck.  If anyone knows why this is happening and can advise so I can
> get rid of jaxen it would be great.

Out of curiosity, got any problem with Jaxen so you want get rid of
it?

> If not it’s no big deal, I’m just curious as to why it won’t work.
>
> Thanks,
> John
>  
> From: Newman, John W [mailto:[email protected]] 
> Sent: Thursday, September 03, 2009 10:13 AM
> To: FreeMarker-user
> Subject: [FreeMarker-user] Stacktrace when trying to use XPath
>  
> Hello,
>  
> We have instances of org.w3c.dom.Element in the data model.  I can
> use simple expressions like element.Child or element.@ID etc and all
> is working fine.  But if I try to use xpath, i.e.
> element[“count(.//Child[./@flag=1])”] .. I get this stack trace everytime:
>  
> java.lang.RuntimeException: Could not resolve the node to a handle
>   at
> org.apache.xml.dtm.ref.DTMManagerDefault.getDTMHandleFromNode(DTMManagerDefault.java:556)
>   at
> org.apache.xpath.XPathContext.getDTMHandleFromNode(XPathContext.java:154)
>   at
> freemarker.ext.dom.XalanXPathSupport.executeQuery(XalanXPathSupport.java:108)
>   at freemarker.ext.dom.NodeModel.get(NodeModel.java:279) 
>   at freemarker.ext.dom.ElementModel.get(ElementModel.java:130) 
>   at
> freemarker.core.DynamicKeyName.dealWithStringKey(DynamicKeyName.java:136)
>  
> Looking around a bit I’ve seen one other person with this error
> message (not using freemarker), and it was due to the com.sun xalan
> being used.  You can see by the trace that we are using the real
> apache xalan, xalan-2.6.0.jar is on the classpath.  Is that the
> wrong version?  Any ideas what’s happening and how I can fix this so we can use xpath?
>  
> Thanks,
> John
> …

-- 
Best regards,
 Daniel Dekany


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