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https://issues.apache.org/jira/browse/AXIOM-441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13495485#comment-13495485
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Paul Millar commented on AXIOM-441:
-----------------------------------
Hi Andreas,
AFAIK, I'm using the one coming with OpenJDK 7u3 (via Debian unstable):
paul@zitpcx6184:~$ dpkg-query -S /usr/lib/jvm/java-7-openjdk-i386/jre/lib/rt.jar
openjdk-7-jre-headless:i386: /usr/lib/jvm/java-7-openjdk-i386/jre/lib/rt.jar
paul@zitpcx6184:~$ dpkg-query -W openjdk-7-jre-headless:i386
openjdk-7-jre-headless:i386 7u3-2.1.3-1
Could you verify that Axiom is able to parse the above example XML?
I haven't delved into Axiom codebase, but the stacktrace makes it look like
this is a problem with Axiom --- assuming null is the correct response for
'bar' element's namespace, in this case.
Cheers,
Paul.
> Fails to parse XML with empty default namespace attribute value
> ---------------------------------------------------------------
>
> Key: AXIOM-441
> URL: https://issues.apache.org/jira/browse/AXIOM-441
> Project: Axiom
> Issue Type: Bug
> Components: LLOM
> Affects Versions: 1.2.13
> Reporter: Paul Millar
> Priority: Critical
>
> From:
> http://www.w3.org/TR/2009/REC-xml-names-20091208/
> "The attribute value in a default namespace declaration MAY be empty. This
> has the same effect, within the scope of the declaration, of there being no
> default namespace."
> Here is a document that demonstrates this:
> <?xml version='1.0' encoding='UTF-8'?>
> <foo xmlns='http://example.org/'>
> <bar xmlns=''>value</bar>
> </foo>
> The following code snippet (slightly modified from Axiom documentation) uses
> Axiom to parse a String variable xmlData:
> InputStream in =
> new
> ByteArrayInputStream(xmlData.getBytes(Charset.forName("UTF-8")));
> OMXMLParserWrapper builder = OMXMLBuilderFactory.createOMBuilder(in);
> OMElement documentElement = builder.getDocumentElement();
> documentElement.serialize(System.out);
> System.out.println();
> When given the above XML example, an IllegalArgumentException is thrown:
> Exception in thread "main" java.lang.IllegalArgumentException: Namespace URI
> may not be null
> at
> org.apache.axiom.om.impl.llom.OMNamespaceImpl.<init>(OMNamespaceImpl.java:38)
> at
> org.apache.axiom.om.impl.llom.OMElementImpl.addNamespaceDeclaration(OMElementImpl.java:430)
> at
> org.apache.axiom.om.impl.builder.StAXOMBuilder.processNamespaceData(StAXOMBuilder.java:608)
> at
> org.apache.axiom.om.impl.builder.StAXOMBuilder.populateOMElement(StAXOMBuilder.java:430)
> at
> org.apache.axiom.om.impl.builder.StAXOMBuilder.createOMElement(StAXOMBuilder.java:461)
> at
> org.apache.axiom.om.impl.builder.StAXOMBuilder.createNextOMElement(StAXOMBuilder.java:318)
> at
> org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:249)
> at
> org.apache.axiom.om.impl.llom.OMElementImpl.buildNext(OMElementImpl.java:709)
> at
> org.apache.axiom.om.impl.llom.OMNodeImpl.getNextOMSibling(OMNodeImpl.java:121)
> at
> org.apache.axiom.om.impl.traverse.OMChildrenIterator.getNextNode(OMChildrenIterator.java:36)
> at
> org.apache.axiom.om.impl.traverse.OMAbstractIterator.hasNext(OMAbstractIterator.java:69)
> at
> org.apache.axiom.om.impl.util.OMSerializerUtil.serializeChildren(OMSerializerUtil.java:555)
> at
> org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:846)
> at
> org.apache.axiom.om.impl.llom.OMSerializableImpl.serialize(OMSerializableImpl.java:120)
> at
> org.apache.axiom.om.impl.llom.OMSerializableImpl.serialize(OMSerializableImpl.java:108)
> at
> org.apache.axiom.om.impl.llom.OMSerializableImpl.serialize(OMSerializableImpl.java:127)
> This looks like a bug.
> Cheers,
> Paul.
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