[jdom-interest] Unhelpful exception due to namespace problems

[Jason Hunter]

Check if you get the same issue with the latest daily snapshot. 
DOMBuilder is *much* better since beta5.

If you do still get it, then send in the code and file causing the error
and I'll check if it's a JDOM issue or not.

-jh-

Kevin Lentle wrote:
> 
> Hi All,
> 
> Got an odd exception whilst using JDOM, listed at the end of the mail (sorry
> about the format but it's from VisualAge).
> 
> After a bit of debugging I tracked it down to a mis-spelling in the
> namespace attribute of the root. Instead of "xmlns:Metalised" I had
> "xmlns:Metalsed", but the rest of the XML used the correct spelling. As soon
> as I fixed the spelling the problem went away.
> 
> A more informative exception would be greatly appreciated. I'd fix it
> myself, but I'm not using CVS and not sure how to go about posting the fix
> without it.
> 
> Regards,
> 
> Kev.
> 
> PS If anyone has ideas on using CVS & VisualAge without constantly
> exporting/importing source, etc, please let me know.
> 
> Now for the exception....
> 
> --------- UNCAUGHT EXCEPTION ---------
> org.jdom.JDOMException: null: null
>  at org.jdom.input.DOMBuilder.build(DOMBuilder.java:194)
>  at org.jdom.input.DOMBuilder.build(DOMBuilder.java:216)
>  at xmltree.JDomTreeModel.getJDomTreeModel1(JDomTreeModel.java:59)
>  at xmltree.JDomTreeModel.connPtoP1SetTarget(JDomTreeModel.java:39)
>  at xmltree.JDomTreeModel.initConnections(JDomTreeModel.java:152)
>  at xmltree.JDomTreeModel.initialize(JDomTreeModel.java:166)
>  at xmltree.JDomTreeModel.<init>(JDomTreeModel.java:23)
>  at xmltree.JDomTreeModel.main(JDomTreeModel.java:180)
> Root cause: java.lang.NullPointerException
>  at org.jdom.input.DOMBuilder.buildTree(DOMBuilder.java:338)
>  at org.jdom.input.DOMBuilder.buildTree(DOMBuilder.java:296)
>  at org.jdom.input.DOMBuilder.build(DOMBuilder.java:191)
>  at org.jdom.input.DOMBuilder.build(DOMBuilder.java:216)
>  at xmltree.JDomTreeModel.getJDomTreeModel1(JDomTreeModel.java:59)
>  at xmltree.JDomTreeModel.connPtoP1SetTarget(JDomTreeModel.java:39)
>  at xmltree.JDomTreeModel.initConnections(JDomTreeModel.java:152)
>  at xmltree.JDomTreeModel.initialize(JDomTreeModel.java:166)
>  at xmltree.JDomTreeModel.<init>(JDomTreeModel.java:23)
>  at xmltree.JDomTreeModel.main(JDomTreeModel.java:180)
> --------- UNCAUGHT EXCEPTION ---------
> java.lang.NullPointerException
>  at dev.metalised.xmltree.JDomTreeModel.getRoot(JDomTreeModel.java:86)
>  at javax.swing.JTree.setModel(Unknown Source)
>  at xmltree.JDomTreeModel.connPtoP1SetTarget(JDomTreeModel.java:39)
>  at xmltree.JDomTreeModel.initConnections(JDomTreeModel.java:152)
>  at xmltree.JDomTreeModel.initialize(JDomTreeModel.java:166)
>  at xmltree.JDomTreeModel.<init>(JDomTreeModel.java:23)
>  at xmltree.JDomTreeModel.main(JDomTreeModel.java:180)
> 
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