XOM API for Processing XML with Java

[Wolfgang Hoschek <whoschek AT lbl.gov>]

xom-1.0 and xom-1.1-CVS both have a bug in Element.copy() and Element 
(Element) where attributes are copied but the new attributes have a  
null parent due to a missing attr.setParent(...).

Here is the fix: Add a parent arg to Element.copyAttributes(),  
adjusting usage of copyAttributes in Element.java accordingly

   private ArrayList copyAttributes(Element parent) {

        int size = attributes.size();
        ArrayList copy = new ArrayList(size);
        for (int i = 0; i < size; i++) {
                Node attr = ((Attribute) attributes.get(i)).copy();
                attr.setParent(parent); // WH bug fix
                copy.add(attr);
//            copy.add(((Attribute) attributes.get(i)).copy());
        }
        return copy;

    }

History: I'm experimenting with a simple yet powerful and efficient  
morphing method for use as an XQuery/XPath
insert, update and delete facility. One of the simpler tests makes a  
copy of a document via document.copy() and then detaches all  
attributes via attribute.detach(). Turns out the attributes are not  
detached at all. Quite probably a bug on my side I thought, but no,  
turns out they're not detached because their parent pointer is null  
as a result of document.copy()!

Wolfgang.