* @since 2.0
 */
@GwtCompatible
public abstract class ForwardingMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingObject implements Multimap<K, V> {

  /** Constructor for use by subclasses. */
  protected ForwardingMultimap() {}

  @Override
  protected abstract Multimap<K, V> delegate();

  @Override
  public Map<K, Collection<V>> asMap() {
    return delegate().asMap();

 */
@GwtCompatible
public abstract class ForwardingSet<E extends @Nullable Object> extends ForwardingCollection<E>
    implements Set<E> {
  // TODO(lowasser): identify places where thread safety is actually lost

  /** Constructor for use by subclasses. */
  protected ForwardingSet() {}

  @Override
  protected abstract Set<E> delegate();

  @Override
  public boolean equals(@Nullable Object object) {

   * collections. If not specified, the collection tests will examine the value returned by {@link
   * Object#toString}.
   */
  NON_STANDARD_TOSTRING,

  /**
   * Indicates that the constructor or factory method of a collection, usually an immutable set,
   * throws an {@link IllegalArgumentException} when presented with duplicate elements instead of

 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingObject implements Multimap<K, V> {

  /** Constructor for use by subclasses. */
  protected ForwardingMultimap() {}

  @Override
  protected abstract Multimap<K, V> delegate();

  @Override
  public Map<K, Collection<V>> asMap() {
    return delegate().asMap();

     */
    public PreauthIntegrityNegotiateContext(final Configuration config, final int[] hashAlgos, final byte[] salt) {
        this.hashAlgos = hashAlgos;
        this.salt = salt;
    }

    /**
     * Default constructor for deserialization.
     */
    public PreauthIntegrityNegotiateContext() {
    }

    /**
     * Gets the salt value used for preauth integrity.
     *
     * @return the salt
     */

 * index names, shard counts, and replica counts for queue, data, and filter indices.
 */
public class FessCrawlerConfig extends OpenSearchCrawlerConfig {

    /**
     * Default constructor.
     */
    public FessCrawlerConfig() {
        super();
    }

    /**
     * Gets the name of the queue index for the crawler.
     *
     * @return the queue index name
     */
    @Override

 */
public class HtmlIndexExportFormatter implements IndexExportFormatter {

    /**
     * Creates a new HtmlIndexExportFormatter instance.
     */
    public HtmlIndexExportFormatter() {
        // default constructor
    }

    @Override
    public String getFileExtension() {
        return ".html";
    }

    @Override
    public String getIndexFileName() {
        return "index.html";
    }

    private static final String DEFAULT_SENSITIVE_PATTERN = ".*password.*|.*secret.*|.*key.*|.*token.*|.*credential.*|.*auth.*|.*private.*";

    private static volatile Pattern sensitivePattern;

    /**
     * Private constructor to prevent instantiation.
     */
    private SystemUtil() {
    }

    /**
     * Gets the HTTP address of the search engine.
     *
     * @return The search engine HTTP address.
     */

 * Provides methods to capture thread information for debugging purposes.
 */
public class ThreadDumpUtil {
    private static final Logger logger = LogManager.getLogger(ThreadDumpUtil.class);

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    protected ThreadDumpUtil() {
        // noop
    }

    /**
     * Prints thread dump information to the logger at INFO level.
     */

import com.google.common.collect.testing.features.CollectionSize;
import java.util.List;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests creation (typically through a constructor or static factory
 * method) of a set. Can't be invoked directly; please see {@link
 * com.google.common.collect.testing.SetTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible