* Get the diagnostics for proxy information.
* @return the information.
*/
public String toString() {
ProxySelector selector = ProxySelector.getDefault();
List list = selector.select(destURI);
StringBuffer result = new StringBuffer();
Iterator proxies = list.listIterator();
while (proxies.hasNext()) {
Proxy proxy = (Proxy) proxies.next();
SocketAddress address = proxy.address();