/* clone connections */
Iterator<FcmConnection> iter = this.getConnectionsIterator();
while(iter.hasNext()){
FcmConnection old_conn = (FcmConnection) iter.next();
WeightedConnection new_conn = (WeightedConnection) old_conn.clone();
new_conn.setFrom(map.getConcept(old_conn.getFrom().getName()));
new_conn.setTo(map.getConcept(old_conn.getTo().getName()));
map.addConnection(new_conn);
map.connect(new_conn.getFrom().getName(), new_conn.getName(), new_conn.getTo().getName());
}