*
     * @param <K> the key type of {@link IdentityHashMap}
     * @param <V> the value type of {@link IdentityHashMap}
     * @return a new instance of {@link IdentityHashMap}
     * @see IdentityHashMap#IdentityHashMap()
     */
    public static <K, V> IdentityHashMap<K, V> newIdentityHashMap() {
        return new IdentityHashMap<>();
    }

    /**

  // removed, since IdentityHashMap throws an exception when that occurs.
  @SuppressWarnings("IdentityHashMapBoxing") // explicitly testing IdentityHashMap
  public void testIdentityKeySetIteratorRemove() {
    BiMap<Integer, String> bimap =
        new AbstractBiMap<Integer, String>(
            new IdentityHashMap<Integer, String>(), new IdentityHashMap<String, Integer>()) {};
    bimap.put(1, "one");

  // removed, since IdentityHashMap throws an exception when that occurs.
  @SuppressWarnings("IdentityHashMapBoxing") // explicitly testing IdentityHashMap
  public void testIdentityKeySetIteratorRemove() {
    BiMap<Integer, String> bimap =
        new AbstractBiMap<Integer, String>(
            new IdentityHashMap<Integer, String>(), new IdentityHashMap<String, Integer>()) {};
    bimap.put(1, "one");

     * @param value the value to be added to the <code>Map</code>
     * @return a {@literal Maps} for constructing a {@link IdentityHashMap} with the specified key and value
     */
    public static <KEY, VALUE> Maps<KEY, VALUE> identityHashMap(final KEY key, final VALUE value) {
        return new Maps<>(new IdentityHashMap<KEY, VALUE>()).$(key, value);
    }

    /**

        // the same instance can be provided multiple times under different Key's
        // deduplicate instances to avoid redundant beforeXXX/afterXXX callbacks
        IdentityHashMap<WeakMojoExecutionListener, Object> listeners = new IdentityHashMap<>();
        for (Object provided : getScopeState().provided()) {
            if (provided instanceof WeakMojoExecutionListener weakMojoExecutionListener) {

        }
    }

    private TransferListenerAdapter(ArtifactTransferListener listener) {
        this.listener = listener;
        this.artifacts = new IdentityHashMap<>();
        this.transfers = new IdentityHashMap<>();
    }

    @Override
    public void debug(String message) {}

    @Override
    public void transferCompleted(TransferEvent transferEvent) {

import javax.inject.Singleton;

import java.io.IOException;
import java.net.ConnectException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Set;

import org.apache.maven.api.plugin.MojoException;
import org.apache.maven.lifecycle.LifecycleExecutionException;
import org.apache.maven.model.building.ModelProblem;

import com.google.common.collect.ImmutableMapEntry.NonTerminalImmutableMapEntry;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.Serializable;
import java.util.IdentityHashMap;
import java.util.function.BiConsumer;
import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link ImmutableMap} used for 0 entries and for 2+ entries. Additional

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.execution;

import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;

import org.apache.maven.project.DependencyResolutionResult;
import org.apache.maven.project.MavenProject;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.graph;

import java.util.ArrayList;
import java.util.Collection;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.execution.ProjectDependencyGraph;