Bug 33783

Input template:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="/">
<core:Display
	xmlns:core="http://example.com/core"
	xmlns:foo="http://example.com/java/foo"
	>
	<core:Styles xmlns="http://example.com/java/foo">
		<Constant/>
	</core:Styles>
	<core:View xmlns="http://example.com/java/javax.swing">
		<!-- workaround for buggy(?) XSLT processor.-->
		<!--This should work:-->
		<foo:Constant/>
		<!--Workaround is:-->
		<!--xsl:element
			namespace="http://example.com/java/foo"
			name="Constant"
			/-->
	</core:View>
</core:Display>
</xsl:template>
</xsl:stylesheet>

Input document:
<doc/>

Expected result:
<?xml version="1.0" encoding="UTF-8"?>
<core:Display xmlns:core="http://example.com/core"
xmlns:foo="http://example.com/java/foo">
<core:Styles xmlns="http://example.com/java/foo">
<Constant/>
</core:Styles>
<core:View xmlns="http://example.com/java/javax.swing">
<foo:Constant/>
</core:View>
</core:Display>

Actual result:
<?xml version="1.0" encoding="UTF-8"?>
<core:Display xmlns:core="http://example.com/core"
xmlns:foo="http://example.com/java/foo">
<core:Styles xmlns="http://example.com/java/foo">
<Constant/>
</core:Styles>
<core:View xmlns="http://example.com/java/javax.swing">
<Constant/>
</core:View>
</core:Display>

(Note second Constant tag is missing namespace prefix)

The error only occurs when a node is defined when its namespace was the default,
then later the same node is defined when its namespace is no longer the default.
The lack of prefix the second time around means it goes into the new (now
incorrect) default namespace. This example is a cut-down version of working
software.

I'm fairly new to the Java sphere, so am not 100% sure of version numbers. I'm
running Eclipse 3.0 and the 1.5.0 Java SDK and am using whatever the combination
of these two forces brings in by default. The classes that get instantiated
appear to be XSLTC-related, and I'm using the JAXP interface. My code looks
something like this:

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
DocumentBuilder parser = factory.newDocumentBuilder();
Document template = parser.parse("transform.xsl");
Document instance = parser.parse("doc.xsli");
Document result = parser.newDocument();
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transform = factory.newTransformer(new DOMSource(template));
DOMResult doc = new DOMResult(result);
transform.transform(new DOMSource(instance), doc);

Benjamin.