}

  private static final class DoNothingRunnable implements Runnable {
    @Override
    public void run() {}
  }
  // The thread executing the task publishes itself to the superclass' reference and the thread
  // interrupting sets DONE when it has finished interrupting.
  private static final Runnable DONE = new DoNothingRunnable();
  private static final Runnable PARKED = new DoNothingRunnable();

 * @author Austin Appleby
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Hashing {
  private Hashing() {}

  /*
   * These should be ints, but we need to use longs to force GWT to do the multiplications with
   * enough precision.
   */
  private static final long C1 = 0xcc9e2d51;
  private static final long C2 = 0x1b873593;

  /*

   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime());
  }

  @VisibleForTesting
  static final class Exiter implements UncaughtExceptionHandler {
    private static final LazyLogger logger = new LazyLogger(Exiter.class);

    private final Runtime runtime;

    Exiter(Runtime runtime) {
      this.runtime = runtime;
    }

    @Override

 */
@Deprecated(since = "4.0.0")
public class ArtifactModelSource extends FileSource implements ModelSource {
    private final String groupId;

    private final String artifactId;

    private final String version;

    private final int hashCode;

    @Deprecated
    public ArtifactModelSource(File file, String groupId, String artifactId, String version) {
        super(file);

                implements ArtifactCoordinatesFactoryRequest {
            private final String groupId;
            private final String artifactId;
            private final String version;
            private final String classifier;
            private final String extension;
            private final String type;
            private final String coordinatesString;

            @SuppressWarnings("checkstyle:ParameterNumber")

  }

  @CanIgnoreReturnValue
  @CheckForNull
  final V put(K key, V value) {
    checkNotNull(key);
    checkNotNull(value);
    clearCache();
    return backingMap.put(key, value);
  }

  @CanIgnoreReturnValue
  @CheckForNull
  final V remove(Object key) {
    checkNotNull(key);
    clearCache();
    return backingMap.remove(key);
  }

  final void clear() {
    clearCache();
    backingMap.clear();

    return new StringConverter<>(enumClass);
  }

  @GwtIncompatible
  private static final class StringConverter<T extends Enum<T>> extends Converter<String, T>
      implements Serializable {

    private final Class<T> enumClass;

    StringConverter(Class<T> enumClass) {
      this.enumClass = checkNotNull(enumClass);
    }

    @Override

 *
 * @author James Sexton
 */
@ElementTypesAreNonnullByDefault
abstract class EndpointPairIterator<N> extends AbstractIterator<EndpointPair<N>> {
  private final BaseGraph<N> graph;
  private final Iterator<N> nodeIterator;

  @CheckForNull
  N node = null; // null is safe as an initial value because graphs don't allow null nodes

  Iterator<N> successorIterator = ImmutableSet.<N>of().iterator();

          t);
    }

    thread.start();
  }

  private final WeakReference<Class<?>> finalizableReferenceClassReference;
  private final PhantomReference<Object> frqReference;
  private final ReferenceQueue<Object> queue;

  // By preference, we will use the Thread constructor that has an `inheritThreadLocals` parameter.

 */
public abstract class IoTestCase extends TestCase {

  private static final Logger logger = Logger.getLogger(IoTestCase.class.getName());

  static final String I18N =
      "\u00CE\u00F1\u0163\u00E9\u0072\u00F1\u00E5\u0163\u00EE\u00F6"
          + "\u00F1\u00E5\u013C\u00EE\u017E\u00E5\u0163\u00EE\u00F6\u00F1";

  static final String ASCII =
      " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"