[jdom-interest] Exception while sorting

[d.breitenmoser at bluewin.ch]

Hi all

I try to sort a list of elements, but it occurs the following an exception.

Exception:
----------
Exception in thread "main" org.jdom.IllegalAddException: The element already
has an existing parent "catalog"

Code:
-----
Element root = data.getRootElement();
List elements = root.getChildren();
    
Collections.sort(elements, new MyComparator(name));

Does anybody know why this error occurs ?

Cheers David