* including adding URLs to the queue, filtering URLs, managing crawler threads,
 * and handling the overall crawling lifecycle.
 *
 * <p>It implements the Runnable interface to be executed in a separate thread,
 * and the AutoCloseable interface to ensure resources are properly released after use.
 *
 * <p>The crawler uses several services and components, such as UrlQueueService, DataService,

        T,
        E>
    extends FeatureSpecificTestSuiteBuilder<B, G> {
  private static final Logger logger =
      Logger.getLogger(PerCollectionSizeTestSuiteBuilder.class.getName());

  /** Creates a runnable JUnit test suite based on the criteria already given. */
  @Override
  public TestSuite createTestSuite() {
    checkCanCreate();

    String name = getName();
    // Copy this set, so we can modify it.

    return task;
  }

  /**
   * Executes {@code runnable} on the specified {@code executor}, returning a {@code Future} that
   * will complete after execution.
   *
   * @throws RejectedExecutionException if the task cannot be scheduled for execution
   * @since 28.2
   */
  public static ListenableFuture<@Nullable Void> submit(Runnable runnable, Executor executor) {
    TrustedListenableFutureTask<@Nullable Void> task =

        };
    addCallback(f, callback, directExecutor());
  }

  private static final class CountingSameThreadExecutor implements Executor {
    int runCount = 0;

    @Override
    public void execute(Runnable command) {
      command.run();
      runCount++;
    }
  }

  private static final class MockCallback implements FutureCallback<String> {
    @Nullable private String value = null;

          } finally {
            monitor.leave();
          }
        });
    awaitUninterruptibly(enteredLatch);
  }

  @CanIgnoreReturnValue
  static Thread startThread(Runnable runnable) {
    Thread thread = new Thread(runnable);
    thread.setDaemon(true);
    thread.start();
    return thread;
  }

  /**
   * Generates a test case verifying that calling any enterXxx, tryEnterXxx, or waitForXxx method

        public String[] getPermissions() {
            return permissions;
        }
    }

    private static void assertThrows(final Class<? extends Throwable> expectedType, final Runnable runnable) {
        try {
            runnable.run();
            throw new AssertionError("Expected " + expectedType.getSimpleName() + " to be thrown");
        } catch (final Throwable t) {
            if (!expectedType.isInstance(t)) {

    void noDependenciesToMock() {
        // This class has no external collaborators; nothing to verify.
        // Keep Mockito import usage minimal to satisfy build-time linkage.
        Runnable r = mock(Runnable.class);
        r.run();
        verify(r, times(1)).run();
    }

      TrustedListenableFutureTask<Integer> task =
          TrustedListenableFutureTask.create(counter::incrementAndGet);
      CyclicBarrier barrier = new CyclicBarrier(numThreads + 1);
      Runnable wrapper =
          () -> {
            awaitUnchecked(barrier);
            task.run();
            awaitUnchecked(barrier);
          };
      for (int j = 0; j < 10; j++) {

        return s == that.s;
      }
      return false;
    }
  }

  static class SameInterfaceInstance {
    private final Runnable s;

    public SameInterfaceInstance(Runnable s) {
      this.s = checkNotNull(s);
    }

    @Override
    public int hashCode() {
      return s.hashCode();
    }

    @Override

    Service service =
        new TestService() {
          @Override
          protected Executor executor() {
            return new Executor() {
              @Override
              public void execute(Runnable command) {}
            };
          }

          @Override
          protected String serviceName() {
            return "Foo";
          }
        };
    TimeoutException e =