*/
public static void setKeySerializer( BTree<?, ?> btree, String keySerializerFqcn )
throws ClassNotFoundException, IllegalAccessException, InstantiationException
{
Class<?> keySerializer = Class.forName( keySerializerFqcn );
ElementSerializer instance = ( ElementSerializer ) keySerializer.newInstance();
btree.setKeySerializer( instance );
btree.setComparator( instance.getComparator() );
}