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https://issues.apache.org/jira/browse/CMIS-518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13243270#comment-13243270
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Florian Müller commented on CMIS-518:
-------------------------------------
First of all, the two examples are not equivalent. Default namespaces work
differently for attributes [1].
But that's not the problem. The problem is that Xalan isn't namespace aware by
default but JAXB requires a namespace aware parser.
This is not an OpenCMIS bug but an incompatibility.
The easiest way to fix that is to set the system property
"javax.xml.transform.TransformerFactory" to a different transformer factory
class name.
This not an ideal solution because it may affect other code running in the JVM.
I'll try to find a workaround.
[1] http://www.w3.org/TR/REC-xml-names/#defaulting
> Interoperability issues with deserialization of attributes in Extension
> Elements
> --------------------------------------------------------------------------------
>
> Key: CMIS-518
> URL: https://issues.apache.org/jira/browse/CMIS-518
> Project: Chemistry
> Issue Type: Bug
> Components: opencmis-commons
> Affects Versions: OpenCMIS 0.7.0
> Reporter: David Ward
> Assignee: Florian Müller
> Priority: Critical
> Attachments: ALF13088.diff
>
>
> We came across this issue in
> https://issues.alfresco.com/jira/browse/ALF-13088 . This is affecting
> Alfresco OpenCMIS Extensions.
> It would seem that the presence or absence of xalan.jar on the sending side
> can affect the receiver's ability to lookup attributes on an extension
> element.
> The two examples given at
> http://groups.google.com/group/alfresco-opencmis-extension/browse_thread/thread/f9d9152691e5a04f
> are equivalent. They just use different ways of serializing the same
> namespaced XML.
> I think the problem lies in the way that OpenCMIS deserializes extension
> elements. It strips the namespace from all attributes, loading their local
> name into a single map. That means xmlns:propertyDefinitionId and
> propertyDefinitionId:propertyDefinitionId may be considered to be the same
> attribute so one can overwrite the other.
> The attached patch to
> org.apache.chemistry.opencmis.commons.impl.Converter.convertDomToCmisExtensionElement()
> fixed the issue for us, making it only pay attention to attributes in the
> element's namespace. What do you think?
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