XOM API for Processing XML with Java

[Wolfgang Hoschek <whoschek AT lbl.gov>]

I'm not quite sure, but perhaps it's possibly to avoid allocating 
unnecessary memory in Element.addNamespaceDeclaration() when there is 
already an attribute with the same binding. In this case, couldn't we 
return without putting the binding into the namespace map? Along the 
following lines:

Element.addNamespaceDeclaration(...)
       ...
        String currentBinding = getLocalNamespaceURI(prefix);
//        if (currentBinding != null && !currentBinding.equals(uri)) {
        if (currentBinding != null) {
        	   if (currentBinding.equals(uri)) return; // WH: nothing do 
do ???
            throw new NamespaceConflictException(
              "Additional namespace " + uri
              + " conflicts with existing namespace binding."
            );
        }

       if (namespaces == null) namespaces = new Namespaces();
        namespaces.put(prefix, uri);


What am I missing?