XOM API for Processing XML with Java

[Michael Whapples <software AT mdw.onl>]

Hello,

I have found if my code tries to call getChild with an index greater 
than the number of child nodes, sometimes it will return null and other 
times it will throw an IndexOutOfBoundsException. This does not seem to 
be entirely random and seems to be reproduceable. When I tested it, 
getChild(1) called when the element only has one child throws the 
exception. Similar for getChild(2) called on an element with 2 child 
nodes. However for getChild(3) called on an element with 3 child nodes 
will return null.


Is there any reason why XOM does different things for what seems to be 
the same problem?


Below is a Java class demonstrating the issue.


import nu.xom.Element;

public class App {
    public static void main(String[] args) {
        Element e1 = new Element("p");
        Element c1 = new Element("s");
        e1.appendChild(c1);
        Element c2 = new Element("b");
        e1.appendChild(c2);
        Element c3 = new Element("s");
        e1.appendChild(c3);
        System.out.println(e1.getChild(3));
        Element e2 = new Element("p");
        Element cn1 = new Element("s");
        e2.appendChild(cn1);
        System.out.println(e2.getChild(1));
    }
}

Regards


Michael Whapples