return checkNotNull(multiset);
  }

  static class UnmodifiableMultiset<E extends @Nullable Object> extends ForwardingMultiset<E>
      implements Serializable {
    final Multiset<? extends E> delegate;

    UnmodifiableMultiset(Multiset<? extends E> delegate) {
      this.delegate = delegate;
    }

    @SuppressWarnings("unchecked")

/**
 * Implementation of the {@link RuleManager} interface.
 * Manages a list of rules for the crawler.
 * Provides methods to add, remove, check, and retrieve rules.
 *
 */
public class RuleManagerImpl implements RuleManager {

    /** The list of rules managed by this rule manager. */
    protected final List<Rule> ruleList = new ArrayList<>();

    /**
     * Creates a new RuleManagerImpl instance.
     */

import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;

/**
 * Trans2 QueryFSInformation request message for querying file system information.
 * This class implements the TRANS2_QUERY_FS_INFORMATION transaction to retrieve
 * various file system attributes such as volume information, size, and capabilities.
 */
public class Trans2QueryFSInformation extends SmbComTransaction {

/**
 * SMB2 Encryption Negotiate Context.
 *
 * This negotiate context is used in SMB 3.x to negotiate
 * encryption capabilities and cipher suites.
 *
 * @author mbechler
 */
public class EncryptionNegotiateContext implements NegotiateContextRequest, NegotiateContextResponse {

    /**
     * Context type
     */
    public static final int NEGO_CTX_ENC_TYPE = 0x2;

    /**
     * AES 128 CCM
     */

 * for (String element : iterable(list, set, map.keySet())) {
 *     ...
 * }
 * </pre>
 *
 * @author koichik
 * @param <E> the element type
 */
public class MultiIterator<E> implements Iterator<E> {

    /** Array of {@link Iterator}s. */
    protected final Iterator<E>[] iterators;

    /** Index of the currently iterated {@link Iterator}. */
    protected int index;

    /**

 * #putByte}. Subtypes may provide more efficient implementations, however.
 *
 * @author Dimitris Andreou
 */
abstract class AbstractHasher implements Hasher {
  @Override
  @CanIgnoreReturnValue
  public final Hasher putBoolean(boolean b) {
    return putByte(b ? (byte) 1 : (byte) 0);
  }

  @Override
  @CanIgnoreReturnValue

/**
 * Unit tests for {@link CacheLoader}.
 *
 * @author Charles Fry
 */
@NullUnmarked
public class CacheLoaderTest extends TestCase {

  private static class QueuingExecutor implements Executor {
    private final Deque<Runnable> tasks = new ArrayDeque<>();

    @Override
    public void execute(Runnable task) {
      tasks.add(task);
    }

    private void runNext() {

            return new DefaultVersionResolverRequest(session, trace, artifactCoordinates, repositories);
        }

        private static class DefaultVersionResolverRequest extends BaseRequest<Session>
                implements VersionResolverRequest {
            private final ArtifactCoordinates artifactCoordinates;
            private final List<RemoteRepository> repositories;

            @SuppressWarnings("checkstyle:ParameterNumber")

 *
 * <p>Clients should call {@link #start}, {@link #newAuthorizeUrl} and {@link #close} in that order.
 * Clients may request multiple sessions.
 */
public final class OAuthSessionFactory extends Dispatcher implements Closeable {
  private final SecureRandom secureRandom = new SecureRandom();

  private final SlackApi slackApi;
  private MockWebServer mockWebServer;

  /** Guarded by this. */

/**
 * Collects the output of the model builder.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class DefaultModelBuildingResult implements ModelBuildingResult {

    private Model effectiveModel;

    private List<String> modelIds;

    private Map<String, Model> rawModels;

    private Map<String, List<Profile>> activePomProfiles;