Hello there, I'm new to this mailing list...
I was doing some evaluation on dom4j as a replacement for Xerces, and
using the
org.w3c.dom interface support.
Everything seems to be working so far - retrofitting it into an
application that I'm
working on. But I'm having trouble with calling to
domDocument.cloneNode(true).
The XML being used contains namespace attributes in the root element
(ex: xmlns:xyz="some URL")
This results in an IllegalAddException being thrown for when it tries
to clone a DOMNamespace
node. Here's the interesting part of the stack trace:
org.dom4j.IllegalAddException: The node "[EMAIL PROTECTED] [Namespace: prefix mapped to URI "http://filenet.com/namespaces/wcm/apps/1.0"]" could not be added to the element "response" because: The Node already has an existing parent of "response"
at org.dom4j.tree.AbstractElement.addNode (AbstractElement.java:2139)
at org.dom4j.tree.AbstractElement.add (AbstractElement.java:1424)
at org.dom4j.tree.AbstractElement.add (AbstractElement.java:1335)
at org.dom4j.tree.AbstractBranch.appendContent (AbstractBranch.java:252)
at org.dom4j.tree.DefaultElement.clone (DefaultElement.java:271)
at org.dom4j.tree.AbstractBranch.appendContent (AbstractBranch.java:252)
at org.dom4j.tree.DefaultDocument.clone (DefaultDocument.java:133)
at org.dom4j.dom.DOMNodeHelper.cloneNode (DOMNodeHelper.java:199)
at org.dom4j.dom.DOMDocument.cloneNode (DOMDocument.java:180)
at com.filenet.wcm.toolkit.server.util.FilterData.mergeObjectSets (C:/starburst/per170/www/001/dev/apps/java/src/com/filenet/wcm/toolkit/server/util/FilterData.java:1211)
at com.filenet.wcm.toolkit.server.util.FilterData.getResults (C:/starburst/per170/www/001/dev/apps/java/src/com/filenet/wcm/toolkit/server/util/FilterData.java:1431)
So I took a quick scan through the dom4j sources, and figured out
that the clone methods do not actually clone a node if
it is readonly. Instead it just returns the node itself from
the clone. Not set up to debug, but I'm assuming that this
node is in fact readonly.
Is there something special to do to make cloning work with an XML
that has namespace attributes, or is it a bug?
Thanks.
-J
