import java.util.SortedSet;
import org.jspecify.annotations.Nullable;

/**
 * Utilities for dealing with sorted collections of all types.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class SortedIterables {
  private SortedIterables() {}

  /**
   * Returns {@code true} if {@code elements} is a sorted collection using an ordering equivalent to
   * {@code comparator}.
   */

import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.testing.SerializableTester;
import org.junit.Ignore;

/**
 * Basic reserialization test for collections.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

    final OneSizeTestContainerGenerator<Collection<E>, E> gen;

    private ReserializedCollectionGenerator(OneSizeTestContainerGenerator<Collection<E>, E> gen) {
      this.gen = gen;
    }

    @Override
    public SampleElements<E> samples() {
      return gen.samples();
    }

    @Override
    public Collection<E> create(Object... elements) {

 */

package com.google.common.collect.testing;

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.Nullable;

/**
 * An unhashable object to be used in testing as values in our collections.
 *
 * @author Regina O'Dell
 */
@GwtCompatible
public class UnhashableObject implements Comparable<UnhashableObject> {
  private final int value;

  public UnhashableObject(int value) {

@defaultMessage Avoid unchecked warnings by using Collections#empty(List|Map|Set) methods
java.util.Collections#EMPTY_LIST
java.util.Collections#EMPTY_MAP
java.util.Collections#EMPTY_SET

java.util.Collections#shuffle(java.util.List) @ Use java.util.Collections#shuffle(java.util.List, java.util.Random) with a reproducible source of randomness

        },
        {
            "year": 2000,
            "publisher": "Harry N. Abrams",
            "type": "Hardcover"
        },
        {
            "year": 2019,
            "publisher": "Ulverscroft Collections",
            "type": "Paperback",
            "pages": 294
        }
    ]

  public void testPutAllEmptyCollectionOnAbsentKey() {
    assertFalse(multimap().putAll(k3(), Collections.emptyList()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAllEmptyIterableOnAbsentKey() {
    assertFalse(multimap().putAll(k3(), Collections::emptyIterator));
    expectUnchanged();
  }

 * Immutable identifier of a {@link TransferResource}.
 * The {@link TransferResource} is not immutable and does not implement {@code Objects#equals} and {@code Objects#hashCode} methods,
 * making it not very suitable for usage in collections.
 */
record TransferResourceIdentifier(
        String repositoryId,
        String repositoryUrl,
        String resourceName,
        @Nullable Path file) {

  @Override
  Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
    return new WrappedSet(key, (Set<V>) collection);
  }

  // Following Javadoc copied from SetMultimap.

  /**
   * {@inheritDoc}
   *
   * <p>Because a {@code SetMultimap} has unique values for a given key, this method returns a
   * {@link Set}, instead of the {@link Collection} specified in the {@link Multimap} interface.
   */
  @Override

  @Override
  Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
    return new WrappedSet(key, (Set<V>) collection);
  }

  // Following Javadoc copied from SetMultimap.

  /**
   * {@inheritDoc}
   *
   * <p>Because a {@code SetMultimap} has unique values for a given key, this method returns a
   * {@link Set}, instead of the {@link Collection} specified in the {@link Multimap} interface.
   */
  @Override