public static void install() {
final ConsoleCredentialsProvider c = new ConsoleCredentialsProvider();
if (c.cons == null)
throw new NoClassDefFoundError(
ConsoleText.get().noSystemConsoleAvailable);
CredentialsProvider cp = new ChainingCredentialsProvider(
new NetRCCredentialsProvider(), c);
CredentialsProvider.setDefault(cp);
}