public void testForEachUnknownOrder() {
    List<E> elements = new ArrayList<>();
    collection.forEach(elements::add);
    assertEqualIgnoringOrder(asList(createSamplesArray()), elements);
  }

  @CollectionFeature.Require(KNOWN_ORDER)
  public void testForEachKnownOrder() {
    List<E> elements = new ArrayList<>();
    collection.forEach(elements::add);
    List<E> expected = copyToList(getOrderedElements());

 */

package com.google.common.collect.testing;

import static java.util.Collections.sort;

import com.google.common.annotations.GwtCompatible;
import java.util.List;
import java.util.SortedSet;
import org.jspecify.annotations.NullMarked;

/**
 * Create integer sets for testing collections that are sorted by natural ordering.
 *
 * @author Chris Povirk
 * @author Jared Levy
 */
@GwtCompatible

                    System.out.println("Hello World!");
                }
            }
            """;

    protected Map<String, String> invoke(Path cwd, Path userHome, Collection<String> goals, Collection<String> args)
            throws Exception {
        Files.createDirectories(cwd.resolve(".mvn"));
        Path pom = cwd.resolve("pom.xml").toAbsolutePath();
        Files.writeString(pom, POM_STRING);

    @Nonnull
    final String name;

    @Nullable
    final Lifecycle.Phase phase;

    final Map<Integer, Map<String, MojoExecution>> mojos = new TreeMap<>();
    final Collection<BuildStep> predecessors = new HashSet<>();
    final Collection<BuildStep> successors = new HashSet<>();
    final AtomicInteger status = new AtomicInteger();
    final AtomicBoolean skip = new AtomicBoolean();
    volatile Exception exception;

import java.util.Collection;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Creates collections, containing sample elements, to be tested.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public interface TestCollectionGenerator<E extends @Nullable Object>

  /** Maximum size of a compact hash-based collection (2^30 - 1 because 0 is UNSET). */
  static final int MAX_SIZE = Ints.MAX_POWER_OF_TWO - 1;

  /** Default size of a compact hash-based collection. */
  static final int DEFAULT_SIZE = 3;

  /**
   * Minimum size of the hash table of a compact hash-based collection. Because small hash tables

            throw new InvalidQueryRegisteredException(msg);
        }
    }

    protected void checkEsInvalidAggregationCollection(String name, Collection<?> values) {
        if (values == null || values.isEmpty()) {
            String msg = "Cannot register null or empty query collection: name=" + name + " values=" + values;
            throw new InvalidQueryRegisteredException(msg);
        }
    }

import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;
import static java.util.Collections.unmodifiableList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.collect.testing.IteratorTester;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionSerializationTester<E> extends AbstractCollectionTester<E> {
  @CollectionFeature.Require(SERIALIZABLE)
  public void testReserialize() {
    // For a bare Collection, the most we can guarantee is that the elements are preserved.
    assertEqualIgnoringOrder(actualContents(), SerializableTester.reserialize(actualContents()));
  }

      @Override
      public Object[] toArray() {
        /*
         * standardToArray returns `@Nullable Object[]` rather than `Object[]` but only because it
         * can be used with collections that may contain null. This collection is a collection of
         * non-null Entry objects (Entry objects that might contain null values but are not
         * themselves null), so we can treat it as a plain `Object[]`.
         */