[XERCESJ-1180] Document root changes indirectly during DeferredDocumentImpl children modification

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.1
• Component/s: DOM (Level 3 Core)
• 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)
• Assignee: Michael Glavassevich
• Reporter: Yury Semikhatsky
• Created: 23/Aug/06 09:41
• Updated: 08/Sep/06 17:31
• Resolved: 28/Aug/06 16:02

Description

In the example below last line causes org.w3c.dom.DOMException because document root is already defined.

import java.io.ByteArrayInputStream;
import java.io.InputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class SetRootTest {
public static void main(String[] args) throws Exception

{ DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); InputStream inputStream = new ByteArrayInputStream("<root><a><b/></a></root>".getBytes()); Document document = builder.parse(inputStream); Element root = document.getDocumentElement(); Element a = (Element) root.getChildNodes().item(0); document.removeChild(root); System.out.println(document.getDocumentElement()); a.getFirstChild(); System.out.println(document.getDocumentElement()); document.appendChild(root);//exception here }

}

The program output:
null
[b: null]
Exception in thread "main" org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted.
at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.insertBefore(CoreDocumentImpl.java:419)
at com.sun.org.apache.xerces.internal.dom.NodeImpl.appendChild(NodeImpl.java:275)
at SetRootTest.main(SetRootTest.java:27)