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Posted to dev@ws.apache.org by "Andreas Veithen (JIRA)" <ji...@apache.org> on 2019/05/09 13:39:00 UTC
[jira] [Updated] (AXIOM-497) Removal of namespace declaration
breaks type attribute
[ https://issues.apache.org/jira/browse/AXIOM-497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andreas Veithen updated AXIOM-497:
----------------------------------
Fix Version/s: (was: 1.2.13)
> Removal of namespace declaration breaks type attribute
> ------------------------------------------------------
>
> Key: AXIOM-497
> URL: https://issues.apache.org/jira/browse/AXIOM-497
> Project: Axiom
> Issue Type: Bug
> Components: Core Model, OM Mixins
> Affects Versions: 1.2.13
> Environment: Weblogic 12.2.1.3 version application server
> Reporter: Unifiers Pega
> Priority: Critical
>
> When the following XML is converted to an OMElement, then written back out, the namespace prefix used by the xsi:type attribute refers to the incorrect namespace URI. That is because the local prefix mapping used in the type name reference is removed from the element that contains the type attribute during parsing.
> It appears to be caused by a null return value from the getNsBuilder method of AttributeCollector when it thinks the namespace declaration is redundant.
> Original XML:
> <ns1:A xmlns:ns1="urn:foo">
> <ns1:B xmlns:ns1="urn:bar">
> <ns2:C xmlns:ns1="urn:foo" xmlns:ns2="urn:bar" xmlns:xsi="[http://www.w3.org/2001/XMLSchema-instance]" xsi:type="ns1:TypeA"/>
> </ns1:B>
> </ns1:A>
> After conversion to OMElement, xsi:type name cannot be resolved because it is mapped to the wrong namespace URI:
> <ns1:A xmlns:ns1="urn:foo">
> <ns1:B xmlns:ns1="urn:bar">
> <ns2:C xmlns:ns2="urn:bar" xmlns:xsi="[http://www.w3.org/2001/XMLSchema-instance]" xsi:type="ns1:TypeA"/>
> </ns1:B>
> </ns1:A>
>
> Here's some sample code to reproduce the issue:
> ```
> System.out.println("Before StAX parsing:\n"+xmlString);
> try {
> java.io.StringReader stringReader = new java.io.StringReader(xmlString);
> javax.xml.stream.XMLInputFactory inputFactory = javax.xml.stream.XMLInputFactory.newInstance();
> javax.xml.stream.XMLStreamReader streamReader = inputFactory.createXMLStreamReader(stringReader);
> org.apache.axiom.om.impl.builder.StAXOMBuilder builder = new org.apache.axiom.om.impl.builder.StAXOMBuilder(streamReader);
> xmlString = builder.getDocumentElement().toString();
> } catch (Exception e) {
> System.out.println("Caught exception " + e);
> }
> System.out.println("After StAX parsing:\n"+xmlString);
> ```
>
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