* encoding for URL decoding.</p>
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * IdnDnsResolver resolver = new IdnDnsResolver();
 * resolver.setFlag(IDN.ALLOW_UNASSIGNED);
 * resolver.setEncoding("UTF-8");
 * InetAddress[] addresses = resolver.resolve("example.com");
 * }
 * </pre>
 *
 */
public class IdnDnsResolver implements DnsResolver {

    /** Flag for IDN conversion. */
    protected int flag = 0;

import org.codelibs.fess.crawler.client.http.config.CredentialsConfig;
import org.codelibs.fess.crawler.client.http.config.WebAuthenticationConfig;
import org.codelibs.fess.crawler.client.http.conn.IdnDnsResolver;
import org.codelibs.fess.crawler.client.http.form.Hc4FormScheme;
import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.crawler.entity.RobotsTxt;