} catch (final ConnectException e) {
            closeResources(httpRequest, responseData);
            throw new CrawlingAccessException("Connection time out(" + e.getMessage() + "): " + url, e);
        } catch (final SocketException e) {
            closeResources(httpRequest, responseData);

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;

 * list of hosts found in "Network Neighborhood".
 */ 

    public static final String MASTER_BROWSER_NAME = "\u0001\u0002__MSBROWSE__\u0002";

/**
 * A special generic name specified when connecting to a host for which
 * a name is not known. Not all servers respond to this name.
 */

    public static final String SMBSERVER_NAME = "*SMBSERVER     ";

/** 

        if (argValue == null) {
          // When a parameter of a @Generates method cannot be created,
          // The type most likely is a collection.
          // Our distinct proxy doesn't work for collections.
          // So just refuse to generate.
          return null;
        }
        args.add(argValue);
      }
      return invokeGeneratorMethod(generate, args.toArray());
    }

 * Undefined behavior and bugs will result.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/ImmutableCollectionsExplained">immutable collections</a>.
 *
 * @author Mike Ward
 * @since 2.0
 */
@GwtCompatible(serializable = true, emulated = true)
@ElementTypesAreNonnullByDefault
public class ImmutableSetMultimap<K, V> extends ImmutableMultimap<K, V>

This is the case for most of the web applications.

Many, many users, but your server is waiting 🕙 for their not-so-good connection to send their requests.

And then waiting 🕙 again for the responses to come back.

This "waiting" 🕙 is measured in microseconds, but still, summing it all, it's a lot of waiting in the end.

				if !isErrVersionNotFound(err) && !isErrObjectNotFound(err) && !xnet.IsNetworkOrHostDown(err, false) {
					if !strings.Contains(err.Error(), "use of closed network connection") {
						transitionLogIf(t.ctx, fmt.Errorf("Transition to %s failed for %s/%s version:%s with %w",
							task.event.StorageClass, task.objInfo.Bucket, task.objInfo.Name, task.objInfo.VersionID, err))
					}
				}

  /**
   * Creates an executor service that runs each task in the thread that invokes {@code
   * execute/submit}, as in {@code ThreadPoolExecutor.CallerRunsPolicy}. This applies both to
   * individually submitted tasks and to collections of tasks submitted via {@code invokeAll} or
   * {@code invokeAny}. In the latter case, tasks will run serially on the calling thread. Tasks are

public final class BloomFilter<T extends @Nullable Object> implements Predicate<T>, Serializable {
  /**
   * A strategy to translate T instances, to {@code numHashFunctions} bit indexes.
   *
   * <p>Implementations should be collections of pure functions (i.e. stateless).
   */
  interface Strategy extends java.io.Serializable {

    /**
     * Sets {@code numHashFunctions} bits of the given bit array, by hashing a user element.
     *

  }

  /** Fails with message "should throw " + exceptionName. */
  public void shouldThrow(String exceptionName) {
    fail("Should throw " + exceptionName);
  }

  /** The number of elements to place in collections, arrays, etc. */
  public static final int SIZE = 20;

  // Some convenient Integer constants

  public static final Integer zero = 0;
  public static final Integer one = 1;