import org.jspecify.annotations.Nullable;

/**
 * Bimap with zero or more mappings.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class RegularImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
  @SuppressWarnings("unchecked") // TODO(cpovirk): Consider storing Entry<?, ?>[] instead.
  static final RegularImmutableBiMap<Object, Object> EMPTY =

   */
  @SuppressWarnings("unchecked")
  public static <T extends @Nullable Object> Collector<T, ?, T> onlyElement() {
    return (Collector) ONLY_ELEMENT;
  }

  /**
   * This atrocity is here to let us report several of the elements in the stream if there were more
   * than one, not just two.
   */
  @SuppressWarnings("EmptyList") // ImmutableList doesn't support nullable element types

        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
            @SuppressWarnings("unused")
            String s = msgs[-1];
        });

        // Act & Assert: index equal to length
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
            @SuppressWarnings("unused")
            String s = msgs[msgs.length];
        });
    }

    @Test

    assertThrows(NullPointerException.class, () -> Booleans.toArray(list));
  }

  @SuppressWarnings({"CollectionIsEmptyTruth", "CollectionIsNotEmptyTruth"})
  public void testAsListIsEmpty() {
    assertThat(Booleans.asList(EMPTY).isEmpty()).isTrue();
    assertThat(Booleans.asList(ARRAY_FALSE).isEmpty()).isFalse();
  }

  @SuppressWarnings("CollectionSizeTruth")
  public void testAsListSize() {

      listenerLatch = new CountDownLatch(numListeners * NUM_THREADS);
      for (int j = 0; j < NUM_THREADS; j++) {
        @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
        Future<?> possiblyIgnoredError = executorService.submit(addTask);
      }
      @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored

          OneSizeTestSuiteBuilder<T, E>, OneSizeGenerator<T, E>> {
    @SuppressWarnings("rawtypes") // class literals
    private final List<Class<? extends AbstractTester>> testers;

    @SuppressWarnings("rawtypes") // class literals
    OneSizeTestSuiteBuilder(List<Class<? extends AbstractTester>> testers) {
      this.testers = testers;
    }

    @SuppressWarnings("rawtypes") // class literals
    @Override

  @SuppressWarnings("ConstantCaseForConstants")
  private static final Map<Class<?>, Class<?>> PRIMITIVE_TO_WRAPPER_TYPE;

  /** A map from wrapper types to their corresponding primitive types. */
  // It's a constant, and we can't use ImmutableMap here without creating a circular dependency.
  @SuppressWarnings("ConstantCaseForConstants")

    if (unfiltered.containsKey(key)) {
      @SuppressWarnings("unchecked") // k is equal to a K, if not one itself
      K k = (K) key;
      return keyPredicate.apply(k);
    }
    return false;
  }

  @Override
  public Collection<V> removeAll(@Nullable Object key) {
    return containsKey(key) ? unfiltered.removeAll(key) : unmodifiableEmptyCollection();
  }

    if (unfiltered.containsKey(key)) {
      @SuppressWarnings("unchecked") // k is equal to a K, if not one itself
      K k = (K) key;
      return keyPredicate.apply(k);
    }
    return false;
  }

  @Override
  public Collection<V> removeAll(@Nullable Object key) {
    return containsKey(key) ? unfiltered.removeAll(key) : unmodifiableEmptyCollection();
  }

  }

  /**
   * Invokes {@code latch.}{@link CountDownLatch#await(long, TimeUnit) await(timeout, unit)}
   * uninterruptibly.
   */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public static boolean awaitUninterruptibly(CountDownLatch latch, long timeout, TimeUnit unit) {
    boolean interrupted = false;
    try {