[AXIOM-20] Infinite loop in OMElement possible

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.8
• Environment: Windows XP, Java 1.5_09, Axiom 1.1.1.
• Assignee: Andreas Veithen
• Reporter: Ryan Nelsestuen
• Created: 27/Mar/07 18:32
• Updated: 27/Mar/11 11:42
• Resolved: 10/Dec/08 19:40

Description

> I discovered today that under certain circumstances you can create an
> OMElementImpl that will go into an infinte loop if you call
> getFirstElement(); The specific example I found is if you create an
> OMElement via the SAXOMBuilder and pass the SAXOMBuilder and
> incomplete/malformed series of events (example code below). The
> workaround is to check isComplete() before calling getFirstElement(),
> but it seems like there should be some other way to avoid this condition.
>

package axiomtest;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.SAXOMBuilder;
import org.xml.sax.Attributes;

public class InfinteLoopDemo {

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

SAXOMBuilder builder = new SAXOMBuilder();

//builder.startPrefixMapping("test", "http://test.com");
builder.startDocument();
builder.startElement("http://test.com", "test", "test:http://test.com", new Attributes(){

public int getIndex(String uri, String localName)

{ // TODO Auto-generated method stub return 0; }

public int getIndex(String qName) { // TODO Auto-generated method stub return 0; }

public int getLength()

{ // TODO Auto-generated method stub return 0; }

public String getLocalName(int index)

{ // TODO Auto-generated method stub return null; }

public String getQName(int index) { // TODO Auto-generated method stub return null; }

public String getType(int index)

{ // TODO Auto-generated method stub return null; }

public String getType(String uri, String localName) { // TODO Auto-generated method stub return null; }

public String getType(String qName)

{ // TODO Auto-generated method stub return null; }

public String getURI(int index) { // TODO Auto-generated method stub return null; }

public String getValue(int index)

{ // TODO Auto-generated method stub return null; }

public String getValue(String uri, String localName) { // TODO Auto-generated method stub return null; }

public String getValue(String qName)

{ // TODO Auto-generated method stub return null; }

});
OMElement root = builder.getRootElement();
OMElement firstChild = root.getFirstElement();
System.out.println("First child is: " + firstChild);

}

}