*/
package org.codelibs.fess.entity;

import java.util.Arrays;

/**
 * Entity class representing a request parameter with a name and associated values.
 * This class encapsulates HTTP request parameters that can have multiple values,
 * such as query parameters, form parameters, or other request-related data.
 *
 * <p>This class is immutable and thread-safe. Once created, the parameter name
 * and values cannot be modified.</p>
 *

import java.util.Map.Entry;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * A container class for the five sample elements we need for testing.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public class SampleElements<E extends @Nullable Object> implements Iterable<E> {
  // TODO: rename e3, e4 => missing1, missing2
  private final E e0;
  private final E e1;

import static java.util.Objects.requireNonNull;

@Named("builtin")
@Singleton
public class BuiltinShellCommandRegistryFactory implements ShellCommandRegistryFactory {
    @Override
    public CommandRegistry createShellCommandRegistry(LookupContext context) {
        return new BuiltinShellCommandRegistry(context);
    }

    private static class BuiltinShellCommandRegistry extends JlineCommandRegistry implements AutoCloseable {

虽然上面的截图取自 <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>。

但 <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> 和大多数 Python 编辑器也支持同样的功能：

<img src="/img/tutorial/body/image05.png">

/// tip | 提示

 * The log level can be configured in the Log4j2 configuration file.
 * </p>
 *
 */
public class LogHelperImpl implements LogHelper {

    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(LogHelperImpl.class);

    /**
     * Creates a new LogHelperImpl instance.
     */
    public LogHelperImpl() {
        super();
    }

    /*

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing and validating URL protocols in Fess crawling system.
 * This class handles the initialization and validation of web and file protocols
 * used by the crawler to determine which URLs can be crawled.
 */
public class ProtocolHelper {
    private static final Logger logger = LogManager.getLogger(ProtocolHelper.class);

    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

    ImmutableLongArray iia = ImmutableLongArray.of(0, 1, 3);
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(-1));
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(3));

    ImmutableLongArray sub = iia.subArray(1, 2);
    assertThrows(IndexOutOfBoundsException.class, () -> sub.get(-1));
  }

  public void testIndexOf() {

    Set<Entry<K, V>> es = entrySet;
    return (es != null) ? es : (entrySet = new EntrySet(this));
  }

  /**
   * Custom Entry class used by EntryIterator.next(), that relays setValue changes to the underlying
   * map.
   */
  private final class WriteThroughEntry implements Entry<K, V> {
    final K key;
    V value;

    WriteThroughEntry(K key, V value) {
      this.key = checkNotNull(key);

   * }
   * if (failure != null) {
   *   throwIfInstanceOf(failure, BarException.class);
   *   throwIfUnchecked(failure);
   *   throw new AssertionError(failure);
   * }
   * </pre>
   *
   * @since 20.0
   */
  @GwtIncompatible // Class.cast, Class.isInstance
  public static <X extends Throwable> void throwIfInstanceOf(
      Throwable throwable, Class<X> declaredType) throws X {
    checkNotNull(throwable);