*
 * <p>The following parameters are managed:</p>
 * <ul>
 *   <li>{@link UrlQueue} - The queue of URLs to be crawled.</li>
 *   <li>{@link CrawlerContext} - The context of the current crawling process.</li>
 *   <li>{@link UrlQueueService} - The service for managing the URL queue.</li>
 *   <li>{@link DataService} - The service for managing access results.</li>
 * </ul>
 *

     * Constructs a new ExtractException with the specified message and cause.
     *
     * @param message the detail message. The detail message is saved for later retrieval by the {@link #getMessage()} method.
     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
     *              (A {@code null} value is permitted, and indicates that the cause is nonexistent or unknown.)
     */

import java.io.IOException;
import java.io.OutputStream;

/**
 * An {@link OutputStream} that maintains a hash of the data written to it.
 *
 * @author Zoe Piepmeier
 * @since 16.0
 */
@Beta
public final class HashingOutputStream extends FilterOutputStream {
  private final Hasher hasher;

  /**
   * Creates an output stream that hashes using the given {@link HashFunction}, and forwards all

{* ../../docs_src/app_testing/tutorial002_py39.py hl[27:31] *}

/// note | Примечание

Подробности смотрите в документации Starlette по <a href="https://www.starlette.dev/testclient/#testing-websocket-sessions" class="external-link" target="_blank">тестированию WebSocket</a>.

        }
        return GenericArrayType.class.cast(type).getGenericComponentType();
    }

    /**
     * Returns the element type of a parameterized {@link Collection}.
     * <p>
     * If <code>type</code> is not a parameterized {@link Collection}, <code>null</code> is returned.
     * </p>
     *
     * @param type
     *            the type to analyze

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 * {@link Escaper}.
 *
 * <p>Additional escapers implementations are found in the applicable packages: {@link
 * com.google.common.html.HtmlEscapers} in {@code com.google.common.html}, {@link
 * com.google.common.xml.XmlEscapers} in {@code com.google.common.xml}, and {@link
 * com.google.common.net.UrlEscapers} in {@code com.google.common.net}.
 *

/**
 * Utility class for {@link InputStream}.
 *
 * @author higa
 */
public abstract class InputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected InputStreamUtil() {
    }

    /** Default buffer size. */
    private static final int BUF_SIZE = 4096;

    /**
     * Creates a {@link FileInputStream}.
     *

     * initialized by a call to {@link #initCause}.
     */
    public InterpolatorException() {}

    /**
     * Constructs a new InterpolatorException with the specified detail message.
     * The cause is not initialized, and may subsequently be initialized by
     * a call to {@link #initCause}.
     *
     * @param message the detail message. The detail message is saved for

import java.util.Enumeration;
import java.util.Iterator;

/**
 * Adapter to convert an {@link Iterator} to an {@link Enumeration}.
 *
 * @author higa
 * @param <T> the element type
 */
public class IteratorEnumeration<T> implements Enumeration<T> {

    /** 反復子 */
    protected final Iterator<T> iterator;

    /**
     * Creates an {@link IteratorEnumeration}.
     *