[jira] Created: (XERCESJ-1180) Document root changes indirectly during DeferredDocumentImpl children modification

Document root changes indirectly during DeferredDocumentImpl children 
modification
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                 Key: XERCESJ-1180
                 URL: http://issues.apache.org/jira/browse/XERCESJ-1180
             Project: Xerces2-J
          Issue Type: Bug
         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)

            Reporter: Yury Semikhatsky


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)



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