public void testRemove_nullKeyQueriesUnsupported() {
    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_VALUE_QUERIES)

      @SuppressWarnings("unchecked") // Since it's unmodifiable, the covariant cast is safe
      Multiset<E> result = (Multiset<E>) multiset;
      return result;
    }
    return new UnmodifiableMultiset<>(checkNotNull(multiset));
  }

  /**
   * Simply returns its argument.
   *
   * @deprecated no need to use this
   * @since 10.0
   */
  @InlineMe(

                            {
                                "name": "if-modified-since",
                                "in": "header",
                                "required": False,
                                "schema": {
                                    "anyOf": [{"type": "string"}, {"type": "null"}],
                                    "title": "If Modified Since",
                                },
                            },

 * been initially specified and repositories discovered in dependency POMs are recessively merged into the search chain.
 *
 * @see DefaultArtifactDescriptorReader
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
class DefaultModelResolver implements ModelResolver {

    private final RepositorySystemSession session;

    private final RequestTrace trace;

import static java.util.Objects.requireNonNull;

/**
 * Default implementation of {@link Type} and Resolver {@link ArtifactType}.
 *
 * @since 4.0.0
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public class DefaultType implements Type, ArtifactType {
    private final String id;
    private final Language language;
    private final String extension;

import org.apache.maven.model.Model;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.repository.WorkspaceReader;

/**
 * MavenWorkspaceReader
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public interface MavenWorkspaceReader extends WorkspaceReader {

    Model findModel(Artifact artifact);

import org.apache.maven.model.building.ModelCache;
import org.eclipse.aether.RepositorySystemSession;

/**
 * Factory for {@link ModelCache} objects.
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public interface ModelCacheFactory {

    ModelCache createCache(RepositorySystemSession session);

     *
     * @throws IllegalArgumentException if {@code expectedValuesPerKey} is negative
     * @since 33.3.0
     */
    @CanIgnoreReturnValue
    public Builder<K, V> expectedValuesPerKey(int expectedValuesPerKey) {
      checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");

      // Always presize to at least 1, since we only bother creating a value collection if there's
      // at least one element.

                "Method com.example.Task.getFailOnError(): Is not annotated with @since 2.0. Reason for accepting this: Upgraded property" to listOf("Method added to public class", "Abstract method has been added to this class"),

   * Optional.empty()}.
   *
   * @throws IllegalArgumentException if {@code nodeU} or {@code nodeV} is not an element of this
   *     graph
   * @since 23.0 (since 20.0 with return type {@code V})
   */
  Optional<V> edgeValue(N nodeU, N nodeV);

  /**
   * Returns the value of the edge that connects {@code endpoints} (in the order, if any, specified