when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree); // method returns itself per implementation

        // Act: call twice
        try (SmbTreeHandleImpl t1 = target.ensureTreeConnected(); SmbTreeHandleImpl t2 = target.ensureTreeConnected()) {
            assertSame(tree, t1);
            assertSame(tree, t2);
        }

   *     : DEFAULT_DOMAIN;
   * }
   *
   * {@snippet :
   * try {
   *   domainName = InternetDomainName.from(name);
   * } catch (IllegalArgumentException e) {
   *   domainName = DEFAULT_DOMAIN;
   * }
   * }
   *
   * @since 8.0 (previously named {@code isValidLenient})
   */
  public static boolean isValid(String name) {
    try {
      InternetDomainName unused = from(name);
      return true;

    }

    // Test run method with null DataService
    public void test_run_nullDataService() {
        indexUpdater.dataService = null;
        try {
            indexUpdater.run();
            fail("Should throw FessSystemException");
        } catch (FessSystemException e) {
            assertEquals("DataService is null.", e.getMessage());
        }
    }

      // previous one completes.
      if (get() == RunningState.CANCELLED) {
        delegate = null;
        sequencer = null;
        return;
      }
      submitting = Thread.currentThread();

      try {
        /*
         * requireNonNull is safe because we don't null out `sequencer` except:
         *
         * - above, where we return (in which case we never get here)
         *

    return Types.newParameterizedTypeWithOwner(
        resolvedOwner, (Class<?>) resolvedRawType, resolvedArgs);
  }

  private static <T> T expectArgument(Class<T> type, Object arg) {
    try {
      return type.cast(arg);
    } catch (ClassCastException e) {
      throw new IllegalArgumentException(arg + " is not a " + type.getSimpleName());
    }
  }

        }
        esCb.request().build(builder);
        SearchResponse response = esCb.build(builder).execute().actionGet(scrollSearchTimeout);
        String scrollId = response.getScrollId();
        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {

      long timeout,
      TimeUnit unit) {
    Preconditions.checkNotNull(buffer);
    long deadline = System.nanoTime() + unit.toNanos(timeout);
    int added = 0;
    boolean interrupted = false;
    try {
      while (added < numElements) {
        // we could rely solely on #poll, but #drainTo might be more efficient when there are
        // multiple elements already available (e.g. LinkedBlockingQueue#drainTo locks only once)

   * RuntimeException runtime exceptions} thrown by the executor.
   */
  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
  private static void executeListener(Runnable runnable, Executor executor) {
    try {
      executor.execute(runnable);
    } catch (Exception e) { // sneaky checked exception
      // Log it and keep going -- bad runnable and/or executor. Don't punish the other runnables if

import jcifs.Configuration;

@ExtendWith(MockitoExtension.class)
class SmbTreeConnectionTraceTest {

    // Helper to build a minimal smb URL
    private static URL smbUrl(String spec) {
        try {
            return new URL(null, spec, new Handler());
        } catch (MalformedURLException e) {
            throw new AssertionError("Failed to create SMB URL: " + spec, e);
        }
    }

            // To test this properly, we would need to mock connect0() and the tree object.
            // This is a limitation of unit testing such a coupled class.
            // We expect an SmbException because it will try to connect.
            assertThrows(SmbException.class, () -> share.getType());
        }

        @Test
        public void testIsHiddenForDollarShare() throws Exception {