handshakeCertificates.trustManager,
        )
    }

    val client = clientBuilder.build()

    val request =
      Request
        .Builder()
        .url("https://valid-isrgrootx1.letsencrypt.org/robots.txt")
        .build()
    client.newCall(request).execute().use { response ->
      assertThat(response.code).isEqualTo(404)
      assertThat(response.protocol).isEqualTo(Protocol.HTTP_2)
    }
  }

    /** XPath expression for extracting robots content from meta tags */
    private static final String META_NAME_ROBOTS_CONTENT = "//META[@name=\"robots\" or @name=\"ROBOTS\"]/@content";

    /** Robots tag value indicating no indexing or following */
    private static final String ROBOTS_TAG_NONE = "none";

    /** Robots tag value indicating no indexing */

import java.util.Map;
import java.util.regex.Pattern;

import org.codelibs.core.lang.StringUtil;

/**
 * Represents a robots.txt file parser and handler.
 * This class manages the rules defined in a robots.txt file, including user agent directives,
 * allowed/disallowed paths, crawl delays, and sitemap URLs.
 *
 * <p>The robots.txt protocol is implemented according to the standard specification,

gc.ca

// cat : https://www.iana.org/domains/root/db/cat.html
cat

// cc : https://www.iana.org/domains/root/db/cc.html
cc

// cd : https://www.iana.org/domains/root/db/cd.html
// see also: https://www.nic.cd/domain/insertDomain_2.jsp?act=1
cd
gov.cd

// cf : https://www.iana.org/domains/root/db/cf.html
cf

// cg : https://www.iana.org/domains/root/db/cg.html
cg

        Optional<BinaryNode> root = Optional.absent();
        for (int i = 0; i < size; i++) {
          root = Optional.of(new BinaryNode(rng.nextInt(), root, Optional.<BinaryNode>absent()));
        }
        return root;
      }
    },
    ALL_RIGHT {
      @Override
      Optional<BinaryNode> createTree(int size, Random rng) {
        Optional<BinaryNode> root = Optional.absent();

        /**
         * @param root The root dependency
         * @return this request for chaining, never {@code null}
         */
        @Nonnull
        public DependencyResolverRequestBuilder root(@Nonnull DependencyCoordinates root) {
            this.root = root;
            return this;
        }

        /**

    /** Whether robots.txt processing is enabled. */
    protected boolean enabled = true;

    /**
     * Creates a new RobotsTxtHelper instance.
     */
    public RobotsTxtHelper() {
        // Default constructor
    }

    /**
     * Parses a robots.txt file from the given input stream using UTF-8 encoding.

  }

  @Test
  fun normalizeSingleSelfSignedCertificate() {
    val root =
      HeldCertificate
        .Builder()
        .serialNumber(1L)
        .build()
    val cleaner = get(root.certificate)
    assertThat(cleaner.clean(list(root), "hostname")).isEqualTo(list(root))
  }

  @Test
  fun normalizeUnknownSelfSignedCertificate() {
    val root =
      HeldCertificate
        .Builder()
        .serialNumber(1L)

          }
        }.accept(root);
      }
    };
  }

  UnmodifiableIterator<T> postOrderIterator(T root) {
    return new PostOrderIterator(root);
  }

  private static final class PostOrderNode<T> {
    final T root;
    final Iterator<T> childIterator;

    PostOrderNode(T root, Iterator<T> childIterator) {
      this.root = checkNotNull(root);

    }

    /**
     * Constructs a new TransportException with the specified root cause.
     *
     * @param rootCause the root cause of this exception
     */
    public TransportException(final Throwable rootCause) {
        this.rootCause = rootCause;
    }

    /**
     * Constructs a new TransportException with the specified detail message and root cause.
     *
     * @param msg the detail message