private static final HashMap<String, String> DEPRECATED_CORE_PARAMETERS;

    private static final String ARTIFACT_REPOSITORY_REASON =
            "ArtifactRepository type is deprecated and its use in Mojos should be avoided.";

    static {
        HashMap<String, String> deprecatedCoreParameters = new HashMap<>();

  }

  @Override
  protected Map<String, Collection<Integer>> makeEmptyMap() {
    Map<String, Integer> map = new HashMap<>();
    return Multimaps.forMap(map).asMap();
  }

  @Override
  protected Map<String, Collection<Integer>> makePopulatedMap() {
    Map<String, Integer> map = new HashMap<>();
    map.put("foo", 1);
    map.put("bar", 2);
    map.put("cow", 3);
    return Multimaps.forMap(map).asMap();
  }

    Map<String, Integer> underlying = new HashMap<>();
    underlying.put("a", 1);
    Map<String, String> map = transformValues(underlying, Functions.toStringFunction());
    assertEquals("1", map.remove("a"));
    assertThat(map.remove("b")).isNull();
  }

  public void testTransformEqualityOfMapsWithNullValues() {
    Map<String, @Nullable String> underlying = new HashMap<>();
    underlying.put("a", null);

     * @return The user properties with contributions.
     */
    default Map<String, String> contribute(ProtoSession protoSession) {
        HashMap<String, String> userProperties = new HashMap<>(protoSession.getUserProperties());
        contribute(userProperties);
        return userProperties;
    }

 * under the License.
 */
package org.apache.maven.cli.event;

import java.util.HashMap;
import java.util.Map;

import org.apache.maven.eventspy.EventSpy;

/**
 * DefaultEventSpyContext
 */
@Deprecated
public class DefaultEventSpyContext implements EventSpy.Context {

    private final Map<String, Object> data = new HashMap<>();

    @Override
    public Map<String, Object> getData() {
        return data;

    }

    protected Optional<Map<String, String>> collectMapIfPresentOrEmpty(
            Function<O, Optional<Map<String, String>>> getter) {
        int had = 0;
        HashMap<String, String> items = new HashMap<>();
        for (O option : options) {
            Optional<Map<String, String>> up = getter.apply(option);
            if (up.isPresent()) {
                had++;

    return Arrays.asList(
        new Object[][] {
          {new MapIteratorCache<String, String>(new HashMap<String, String>())},
          {new MapIteratorCache<String, String>(new TreeMap<String, String>(nullsLast))},
          {new MapRetrievalCache<String, String>(new HashMap<String, String>())},
          {new MapRetrievalCache<String, String>(new TreeMap<String, String>(nullsLast))}
        });
  }

 * under the License.
 */
package org.apache.maven.lifecycle.providers;

import javax.inject.Provider;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;

import org.apache.maven.lifecycle.Lifecycle;
import org.apache.maven.lifecycle.mapping.LifecyclePhase;

/**
 * Base lifecycle provider.
 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import java.util.HashMap;
import java.util.Map;
import org.jspecify.annotations.NullMarked;

@GwtCompatible
@NullMarked
public class FilteredMapTest extends AbstractFilteredMapTest {
  @Override
  Map<String, Integer> createUnfiltered() {
    return new HashMap<>();
  }

    private Map<String, BuildFailure> buildFailuresByProject = new HashMap<>();

    private Map<String, Map<String, Map>> pluginContextsByProjectAndPluginKey = new HashMap<>();

    private String failureBehavior = FAIL_FAST;

    private final ProjectSorter sorter;

    private Map<String, BuildSuccess> buildSuccessesByProject = new HashMap<>();