throw new JspException("comparator ["+comparatorObj+"] does not implements Comparator interface");
}
Comparator c = (Comparator) findValue(comparatorAttr);
// SortIteratorFilter
sortIteratorFilter = new SortIteratorFilter();
sortIteratorFilter.setComparator(c);
sortIteratorFilter.setSource(srcToSort);
sortIteratorFilter.execute();
// push sorted iterator into stack, so nexted tag have access to it