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From Andreas Klöber (JIRA) <xmlbeans-...@xml.apache.org>
Subject [jira] Created: (XMLBEANS-382) Twice traversion of XmlBeans DOM-implementation fails
Date Mon, 29 Sep 2008 08:16:44 GMT
Twice traversion of XmlBeans DOM-implementation fails

                 Key: XMLBEANS-382
                 URL: https://issues.apache.org/jira/browse/XMLBEANS-382
             Project: XMLBeans
          Issue Type: Bug
          Components: DOM
    Affects Versions: Version 2.4 
         Environment: Windows Xp Professional, Sun JDK 1.5.0-16
            Reporter: Andreas Klöber
            Priority: Critical

After parsing an XML-file with the generic XmlObject.Factory.parse-method the traversion of
the DOM-Reprsentation fails the second time. The following shortened example demonstrates

content of example_fail.xml:



import java.io.File;

import org.apache.xmlbeans.XmlObject;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

public class XmlBeansBug {
	private static String EXAMPLE_XML_FILE_FAIL = "example_fail.xml";

	private static void traverseNodes(Node node){

		//get first child (<a>-node)
		Node aNode = node.getFirstChild();
		//get next child (#TEXT-node)
		Node textNode1 = aNode.getFirstChild();
		//get next sibling (#COMMENT-node)
		Node commentNode = textNode1.getNextSibling();
		//get next sibling (second #TEXT-node)
		boolean hasCommentNodeChildes = commentNode.hasChildNodes();
		System.out.println("  has comment-node child-nodes: " + hasCommentNodeChildes);
			Node chilfOfCommentNode = commentNode.getFirstChild();
			System.out.println("  child of comment-node is: " + chilfOfCommentNode);
		Node textNode2 = commentNode.getNextSibling();

		//get next sibling (<b>-node)
		Node bNode = textNode2.getNextSibling();

	public static void main(String[] args) throws Throwable {
		XmlObject exampleFailXmlObject = XmlObject.Factory
				.parse(new File(EXAMPLE_XML_FILE_FAIL));
		Document exampleFailDocument = (Document) exampleFailXmlObject

		System.out.println("First run:");
		System.out.println("Second run:");


The first time hasChildNodes() on the comment-node returns false, which is correct. The second
time it returns true althoughthere have only been reading operations on the DOM-model. The
further call of getFirstChild() returns null although the previous call to hasChildNodes()
returned true.

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