final Queue<OpenSearchUrlQueue> crawlingQueue = queueHolder.crawlingQueue;

        OpenSearchUrlQueue urlQueue = waitingQueue.poll();
        if (urlQueue == null) {
            synchronized (queueHolder) {
                urlQueue = waitingQueue.poll();
                if (urlQueue == null) {
                    final List<OpenSearchUrlQueue> urlQueueList = fetchUrlQueueList(sessionId);

            if (totalProjects <= 1) {
                infoMain(building);
            } else {
                // display progress [i/n]
                int number;
                synchronized (this) {
                    number = ++currentVisitedProjectCount;
                }
                String progress = " [" + number + '/' + totalProjects + ']';

import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicReference;
import org.jspecify.annotations.Nullable;

/**
 * Serializes execution of tasks, somewhat like an "asynchronous {@code synchronized} block." Each
 * {@linkplain #submit enqueued} callable will not be submitted to its associated executor until the
 * previous callable has returned -- and, if the previous callable was an {@link AsyncCallable}, not

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

    @Override
    public synchronized void init() {
        if (smbAuthenticationHolder != null) {
            return;
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Initializing SmbClient...");
        }

      assertEquals(name, invokable.getName());
      assertEquals(A.class, invokable.getDeclaringClass());
      return invokable;
    }

    native void nativeMethod();

    synchronized void synchronizedMethod() {}
  }

  public void testConstructor_returnType() throws Exception {
    assertEquals(Prepender.class, Prepender.constructor().getReturnType().getType());
  }

  public void testOrderingUnmodifiable() {
    SetMultimap<String, Integer> multimap = initializeMultimap5();
    assertOrderingReadOnly(Multimaps.unmodifiableMultimap(multimap));
  }

  @J2ktIncompatible // Synchronized
  public void testOrderingSynchronized() {
    SetMultimap<String, Integer> multimap = initializeMultimap5();
    assertOrderingReadOnly(synchronizedMultimap(multimap));
  }

  @J2ktIncompatible

                            assertNotNull(name);
                            assertTrue(name.startsWith("thread"));
                        }
                    } catch (Exception e) {
                        synchronized (exceptions) {
                            exceptions.add(e);
                        }
                    } finally {
                        endLatch.countDown();
                    }
                }

  /** Returns true if the element is native. */
  public final boolean isNative() {
    return Modifier.isNative(getModifiers());
  }

  /** Returns true if the method is synchronized. */
  public final boolean isSynchronized() {
    return Modifier.isSynchronized(getModifiers());
  }

  /** Returns true if the field is volatile. */
  final boolean isVolatile() {
    return Modifier.isVolatile(getModifiers());
  }

    boolean isRootOrShare() {
        // length == 0 should not happen
        return getUNCPath().length() <= 1;
    }

    /**
     * @throws MalformedURLException
     *
     */
    private synchronized void canonicalizePath() {
        final char[] in = this.url.getPath().toCharArray();
        final char[] out = new char[in.length];
        final int length = in.length;
        int prefixLen = 0, state = 0;

     */
    protected Storage storage;

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

    @Override
    public synchronized void init() {
        if (isInit) {
            return;
        }

        super.init();

        final String projectId = getInitParameter("projectId", null, String.class);