private static class SampleException extends Exception {}

  @SuppressWarnings("serial")
  private static class SampleRuntimeException extends RuntimeException {}

  private static class SampleImpl implements Sample {
    final long delayMillis;
    boolean finished;

    SampleImpl(long delayMillis) {
      this.delayMillis = delayMillis;
    }

    @CanIgnoreReturnValue
    @Override

 * </p>
 *
 */
/**
 * This class is an implementation of {@link UrlQueueService}.
 */
public class UrlQueueServiceImpl implements UrlQueueService<UrlQueueImpl<Long>> {

    /**
     * Creates a new UrlQueueServiceImpl instance.
     */
    public UrlQueueServiceImpl() {
        // NOP
    }

 * </p>
 *
 * @see <a href="https://developers.google.com/search/docs/crawling-indexing/sitemaps/video-sitemaps">Video Sitemaps</a>
 */
public class SitemapVideo implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * A URL pointing to the video thumbnail image file.
     * Images must be at least 160x90 pixels and at most 1920x1080 pixels.

     * It validates inputs, records calls, and delegates some behavior to collaborators
     * so we can verify interactions.
     */
    static class TestCredentials implements CredentialsInternal {
        private final String domain;
        private final boolean anonymous;
        private final boolean guest;
        private final Subject subject;
        private final boolean failOnRefresh;

 *
 * @author Louis Wasserman
 * @since 15.0
 */
@GwtCompatible
public abstract class ForwardingSortedMultiset<E extends @Nullable Object>
    extends ForwardingMultiset<E> implements SortedMultiset<E> {
  /** Constructor for use by subclasses. */
  protected ForwardingSortedMultiset() {}

  @Override
  protected abstract SortedMultiset<E> delegate();

  @Override

   *
   * <p>This class is very similar to {@link SequentialExecutor} with the exception that events can
   * be added without necessarily executing immediately.
   */
  private static final class PerListenerQueue<L> implements Runnable {
    final L listener;
    final Executor executor;

    @GuardedBy("this")
    final Queue<ListenerCallQueue.Event<L>> waitQueue = new ArrayDeque<>();

    @GuardedBy("this")

/**
 * SettingsXmlConfigurationProcessor
 */
@Named(SettingsXmlConfigurationProcessor.HINT)
@Singleton
@Deprecated
public class SettingsXmlConfigurationProcessor implements ConfigurationProcessor {
    public static final String HINT = "settings";

    public static final String USER_HOME = System.getProperty("user.home");

 * technical reasons, it is not part of the public API. In particular, this class can be changed or deleted without
 * prior notice.
 *
 */
@Named
@Singleton
public class DefaultProjectBuildingHelper implements ProjectBuildingHelper {
    private final Logger logger = LoggerFactory.getLogger(getClass());
    private final ClassRealmManager classRealmManager;
    private final ProjectRealmCache projectRealmCache;

        assertNull(result.get(1));
        assertEquals("third", result.get(2));
    }

    /**
     * Test helper class for serialization tests
     */
    public static class TestSerializableClass implements Serializable {
        private static final long serialVersionUID = 1L;

        public String name;
        public int value;

        public TestSerializableClass(final String name, final int value) {

/**
 * Pager implementation for crawling information pagination.
 * Provides functionality for paginating crawling information results in the admin interface.
 */
public class CrawlingInfoPager implements Serializable {

    /**
     * Creates a new pager instance with default settings.
     */
    public CrawlingInfoPager() {
        // Default constructor
    }