 | | | Commented: (XERCESJ-1147) Parsed document is not fully initialized until | Commented: (XERCESJ-1147) Parsed document is not fully initialized until 2006-09-12 - By Libor Valenta (JIRA)
[ http://issues.apache.org/jira/browse/XERCESJ-1147?page=comments#action
_12434232 ]
Libor Valenta commented on XERCESJ-1147:
----------------------------------------
Is there any chance to get it in some JDK update?
> Parsed document is not fully initialized until getFirstChild() is called
> ------------------------------------------------------------------------
>
> Key: XERCESJ-1147
> URL: http://issues.apache.org/jira/browse/XERCESJ-1147
> Project: Xerces2-J
> Issue Type: Bug
> Components: DOM (Level 3 Core)
> Affects Versions: 2.8.0
> Environment: java version "1.5.0_06"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
> Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)
> Saxon: saxonb8-7j
> Reporter: Libor Valenta
> Assigned To: Michael Glavassevich
> Fix For: 2.8.1
>
>
> I have problems with Xerces bundled with JDK 1.5 as well as Xerces-J 2.8.0, I
was usin XSLT 2.0 transformer Saxon 8.7 to access document produced by java
extension. Problems go away when I call document.getFirstChild(); before
returning document for the transformation, the side-effect of getFirstChild()
makes me believe that there is something wrong with implementation of the
Document.
> Here is simple code to demostrate the problem Test .java:
> import org.w3c.dom.Document;
> import org.xml.sax.InputSource;
> import javax.xml.parsers.DocumentBuilder;
> import javax.xml.parsers.DocumentBuilderFactory;
> import javax.xml.transform.Transformer;
> import javax.xml.transform.TransformerException;
> import javax.xml.transform.TransformerFactory;
> import javax.xml.transform.stream.StreamResult;
> import javax.xml.transform.stream.StreamSource;
> import java.io.StringReader;
> import java.io.StringWriter;
> public class Test {
> // this will call test1() which DOES call getFirstChild() before document
is returned
> static String XSL1 = "<?xml version=\"1.0\"?>\n" +
> "<xsl:stylesheet xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"
version=\"2.0\" xmlns:test=\"Test\">\n" +
> " <xsl:template match=\"/\">\n" +
> " <xsl:copy-of select=\"test:test1()\"/>\n" +
> " </xsl:template>\n" +
> "</xsl:stylesheet>";
> // this will call test2() which DOES NOT call getFirstChild() before
document is returned
> static String XSL2 = "<?xml version=\"1.0\"?>\n" +
> "<xsl:stylesheet xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"
version=\"2.0\" xmlns:test=\"Test\">\n" +
> " <xsl:template match=\"/\">\n" +
> " <xsl:copy-of select=\"test:test2()\"/>\n" +
> " </xsl:template>\n" +
> "</xsl:stylesheet>";
> public static void main(String[] args) throws Exception {
> transform(XSL1); // Result is: <?xml version="1.0" encoding="UTF-8"?><y/>
> transform(XSL2); // Result is:
> }
> private static void transform(String xsl) throws TransformerException {
> Transformer transformer = TransformerFactory.newInstance().newTransformer
(new StreamSource(new StringReader(xsl)));
> StringWriter out = new StringWriter();
> transformer.transform(new StreamSource(new StringReader("<x/>")), new
StreamResult(out));
> System.out.println("Result is: " + out);
> }
> public static Document test1() throws Exception {
> DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
> Document document = documentBuilder.parse(new InputSource(new
StringReader("<y/>")));
> // next call has some side-effect that make things work,
synchronizeChildren() ?
> // likely bug in com.sun.org.apache.xerces.internal.dom
.DeferredDocumentImpl
> document.getFirstChild();
> return document;
> }
> public static Document test2() throws Exception {
> DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
> Document document = documentBuilder.parse(new InputSource(new
StringReader("<y/>")));
> return document;
> }
> }
> I do not know how Saxon is using the document, but whatever it does, it
should behave same way for test1() and test2()
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