return (Collector) TO_OPTIONAL;
  }

  private static final Object NULL_PLACEHOLDER = new Object();

  private static final Collector<@Nullable Object, ?, @Nullable Object> ONLY_ELEMENT =
      Collector.<@Nullable Object, ToOptionalState<Object>, @Nullable Object>of(
          () -> new ToOptionalState<>(null),
          (state, o) -> state.add((o == null) ? NULL_PLACEHOLDER : o),
          ToOptionalState::combine,

                isEstablished = true;
                state++;
                break;
            } catch (final Exception e) {
                throw new SmbException(e.getMessage(), e);
            }
        default:
            throw new SmbException("Invalid state");
        }
        return token;
    }

// Create context with credentials
CIFSContext context = new BaseContext(new jcifs.config.PropertyConfiguration());
NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("domain", "username", "password");
CIFSContext authContext = context.withCredentials(auth);

// Use authenticated context
try (SmbFile file = new SmbFile("smb://server/share/", authContext)) {
    for (SmbFile f : file.listFiles()) {

        body.dictId = dictId;
        validateApi(body, messages -> {});
        final SynonymPager pager = copyBeanToNewBean(body, SynonymPager.class);
        return asJson(new ApiResult.ApiConfigsResponse<EditBody>().settings(synonymService.getSynonymList(body.dictId, pager)
                .stream()
                .map(protwordsItem -> createEditBody(protwordsItem, dictId))

    @Mock
    Configuration configuration;

    @Mock
    CIFSContext cifsContext;

    // Helper to create a fresh request under test
    private Smb2LogoffRequest newRequest() {
        return new Smb2LogoffRequest(configuration);
    }

    @Test
    @DisplayName("size() returns 8-byte aligned value (header + 4)")
    void size_returnsAlignedValue() {
        // Arrange

            // create
            newInput = input;
        }
    }

    /**
     * Gets the new stopword.
     *
     * @return The new stopword.
     */
    public String getNewInput() {
        return newInput;
    }

    /**
     * Sets the new stopword.
     *
     * @param newInput The new stopword.
     */
    public void setNewInput(final String newInput) {
        this.newInput = newInput;

a","georgia","hawaii","idaho","illinois","indiana","iowa","kansas","kentucky","louisiana","maine","maryland","district of columbia","massachusetts","michigan","minnesota","mississippi","missouri","montana","nebraska","nevada","new hampshire","new jersey","new mexico","new york","north carolina","north dakota","ohio","oklahoma","oregon","pennsylvania","rhode island","south carolina","south dakota","tennessee","texas","utah","vermont","virginia","washington","west virginia","wisconsin","wyoming"],...

    checkNotNull(callable);
    CloseableList closeables = new CloseableList();
    TrustedListenableFutureTask<V> task =
        TrustedListenableFutureTask.create(
            new AsyncCallable<V>() {
              @Override
              public ListenableFuture<V> call() throws Exception {
                CloseableList newCloseables = new CloseableList();
                try {

@NullMarked
public class TearDownStack implements TearDownAccepter {
  private static final Logger logger = Logger.getLogger(TearDownStack.class.getName());

  @VisibleForTesting final Object lock = new Object();

  @GuardedBy("lock")
  final Deque<TearDown> stack = new ArrayDeque<>();

  private final boolean suppressThrows;

  public TearDownStack() {
    this.suppressThrows = false;
  }

  public TearDownStack(boolean suppressThrows) {

  void setUp() throws Exception {
    this.factory = CycleDetectingLockFactory.newInstance(CycleDetectingLockFactory.Policies.WARN);
    this.plainLocks = new Lock[lockNestingDepth];
    for (int i = 0; i < lockNestingDepth; i++) {
      plainLocks[i] = new ReentrantLock();
    }
    this.detectingLocks = new Lock[lockNestingDepth];
    for (int i = 0; i < lockNestingDepth; i++) {
      detectingLocks[i] = factory.newReentrantLock("Lock" + i);
    }
  }