public void testAsSetIteration() {
    Set<Entry<String, Collection<Integer>>> set =
        new LinkedHashSet<>(
            asList(
                immutableEntry("foo", (Collection<Integer>) newHashSet(2, 3, 6)),
                immutableEntry("bar", (Collection<Integer>) newHashSet(4, 5, 10, 11)),
                immutableEntry("baz", (Collection<Integer>) newHashSet(7, 8)),

import java.util.Collection;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import org.jspecify.annotations.Nullable;

/**
 * A {@link BlockingQueue} which forwards all its method calls to another {@link BlockingQueue}.
 * Subclasses should override one or more methods to modify the behavior of the backing collection

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   */
  public static char[] toArray(Collection<Character> collection) {
    if (collection instanceof CharArrayAsList) {
      return ((CharArrayAsList) collection).toCharArray();
    }

    Object[] boxedArray = collection.toArray();
    int len = boxedArray.length;

package com.google.common.collect;

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

/**
 * A GWT-only class only used by GWT emulations. It is used to consolidate the definitions of method
 * delegation to save code size.
 *
 * @author Hayward Chan
 */
final class ForwardingImmutableCollection<E> extends ImmutableCollection<E> {

  final transient Collection<E> delegate;

import static java.util.Arrays.asList;
import static java.util.Collections.emptyMap;
import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;

import javax.inject.Named;
import javax.inject.Singleton;

import java.io.FileNotFoundException;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.impl.ArtifactResolver;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionSize;
import java.util.Collection;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * The subject-generator interface accepted by Collection testers, for testing a Collection at one
 * particular {@link CollectionSize}.
 *
 * <p>This interface should not be implemented outside this package; {@link

   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   * @since 1.0 (parameter was {@code Collection<Double>} before 12.0)
   */
  public static double[] toArray(Collection<? extends Number> collection) {
    if (collection instanceof DoubleArrayAsList) {
      return ((DoubleArrayAsList) collection).toDoubleArray();
    }