private final ListMultimap<Class<?>, Object> distinctValues = ArrayListMultimap.create();
  private final NullPointerTester nullPointerTester = new NullPointerTester();

  public ClassSanityTester() {
    // TODO(benyu): bake these into ArbitraryInstances.
    setDefault(byte.class, (byte) 1);
    setDefault(Byte.class, (byte) 1);
    setDefault(short.class, (short) 1);
    setDefault(Short.class, (short) 1);

/**
 * Tests for {@link TreeRangeSet}.
 *
 * @author Louis Wasserman
 * @author Chris Povirk
 */
@GwtIncompatible // TreeRangeSet
@NullUnmarked
public class TreeRangeSetTest extends AbstractRangeSetTest {
  // TODO(cpovirk): test all of these with the ranges added in the reverse order

  private static final ImmutableList<Range<Integer>> QUERY_RANGES;

  private static final int MIN_BOUND = -1;
  private static final int MAX_BOUND = 1;

 * Stats}, {@link PairedStatsAccumulator}, and {@link PairedStats}.
 *
 * @author Pete Gillin
 */
@NullUnmarked
@J2ktIncompatible
@GwtIncompatible
class StatsTesting {
  // TODO(cpovirk): Convince myself that this larger error makes sense.
  static final double ALLOWED_ERROR = isAndroid() ? .25 : 1e-10;

  // Inputs and their statistics:

  static final double ONE_VALUE = 12.34;

/**
 * Tests for {@link ImmutableMultiset}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class ImmutableMultisetTest extends TestCase {

  @J2ktIncompatible
  @GwtIncompatible // suite // TODO(cpovirk): add to collect/gwt/suites
  @AndroidIncompatible // test-suite builders
  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTestSuite(ImmutableMultisetTest.class);

 *
 * @since 2.0
 */
@DoNotMock("Use ImmutableList.of or another implementation")
@GwtCompatible
@SuppressWarnings("serial") // we're overriding default serialization
// TODO(kevinb): I think we should push everything down to "BaseImmutableCollection" or something,
// just to do everything we can to emphasize the "practically an interface" nature of this class.

   */
  public static <K, V> ImmutableListMultimap<K, V> copyOf(
      Multimap<? extends K, ? extends V> multimap) {
    if (multimap.isEmpty()) {
      return of();
    }

    // TODO(lowasser): copy ImmutableSetMultimap by using asList() on the sets
    if (multimap instanceof ImmutableListMultimap) {
      @SuppressWarnings("unchecked") // safe since multimap is not writable

      @Nullable Object @Nullable ... errorMessageArgs) {
    if (reference == null) {
      throw new VerifyException(lenientFormat(errorMessageTemplate, errorMessageArgs));
    }
    return reference;
  }

  // TODO(kevinb): consider <T> T verifySingleton(Iterable<T>) to take over for
  // Iterables.getOnlyElement()

  private Verify() {}

            InputLocation location = coreExtension.getLocation("");
            gasLocations.computeIfAbsent(ga, k -> new ArrayList<>()).add(location);
            // TODO: metaversions could be extensible enum with these two values out of the box
            if ("LATEST".equals(coreExtension.getVersion()) || "RELEASE".equals(coreExtension.getVersion())) {

```

Это говорит Traefik слушать порт 9999 и использовать другой файл `routes.toml`.

/// tip | Совет

Мы используем порт 9999 вместо стандартного HTTP‑порта 80, чтобы не нужно было запускать с правами администратора (`sudo`).

///

Теперь создайте второй файл `routes.toml`:

```TOML hl_lines="5  12  20"
[http]
  [http.middlewares]

    [http.middlewares.api-stripprefix.stripPrefix]
      prefixes = ["/api/v1"]

Це вказує Traefik слухати порт 9999 і використовувати інший файл `routes.toml`.

/// tip | Порада

Ми використовуємо порт 9999 замість стандартного HTTP-порту 80, щоб вам не довелося запускати його з адмін-повноваженнями (`sudo`).

///

Тепер створіть інший файл `routes.toml`:

```TOML hl_lines="5  12  20"
[http]
  [http.middlewares]

    [http.middlewares.api-stripprefix.stripPrefix]
      prefixes = ["/api/v1"]