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https://issues.apache.org/jira/browse/WSCOMMONS-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andreas Veithen updated WSCOMMONS-517:
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Fix Version/s: Axiom 1.2.9
> OMElement.declareDefaultNamespace() declares empty namespace for child
> element.
> -------------------------------------------------------------------------------
>
> Key: WSCOMMONS-517
> URL: https://issues.apache.org/jira/browse/WSCOMMONS-517
> Project: WS-Commons
> Issue Type: Bug
> Components: AXIOM
> Affects Versions: Axiom 1.2.8
> Environment: Microsoft Windows 2003 Server, Java 1.5.0_11. Axis2
> version 1.3 (uses AXIOM version 1.2.5).
> Reporter: Yechiel Mondrowitz
> Assignee: Andreas Veithen
> Fix For: Axiom 1.2.9
>
>
> When calling declareDefaultNamespace() on a parent node, AXIOM assignes a
> blank namespace on the first level's child element. So if XML is passed to
> AXIOM that looks like this:
> <outerTag>
> <innerTag>
> <node1>Hello</node1>
> <node2>Hello</node2>
> </innerTag>
> </outerTag>
> And then declareDefaultNamespace() of "http://someNamespace"; is called on the
> <outerTag>, the resulting XML will be this:
> <outerTag xmlns="http://someNamespace";>
> <innerTag xmlns="">
> <node1>Hello</node1>
> <node2>Hello</node2>
> </innerTag>
> </outerTag>
> Notice the xmlns="" declared in the <innerTag>. According to my
> understanding of XML namespaces, the <innerTag> and its child nodes will no
> longer belong to the parent namespace of "http://someNamespace";, since it
> explicitly overrides it with an empty namespace. So <innerTag> and its child
> nodes will in fact not belong to any namespace! Here is a small program to
> illustrate:
> import org.apache.axiom.om.*;
> import org.apache.axiom.om.impl.llom.util.*;
> public class Test2 {
> public static void main(String [] args) {
> try {
> String xmlString =
> "<outerTag>" +
> "<innerTag>" +
> "<node1>Hello</node1>" +
> "<node2>Hello</node2>" +
> "</innerTag>" +
> "</outerTag>";
> OMElement elem = AXIOMUtil.stringToOM(xmlString);
> elem.declareDefaultNamespace("http://someNamespace";);
> System.out.println(elem.toString());
> }
> catch(Exception e) {
> e.printStackTrace();
> }
> }
> }
> The output of this program is this (I added line breaks in the XML for easier
> readability):
> <outerTag xmlns="http://someNamespace";>
> <innerTag xmlns="">
> <node1>Hello</node1>
> <node2>Hello</node2>
> </innerTag>
> </outerTag>
> As you can see, the <innerTag> was assigned xmlns="" by AXIOM.
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