import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Collection;
import org.jspecify.annotations.NonNull;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to object arrays.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible

  }

  @GwtIncompatible
  @J2ktIncompatible
  public void testEntrySetSpliteratorCharacteristics() {
    int expectedCharacteristics =
        Spliterator.DISTINCT | Spliterator.ORDERED | Spliterator.NONNULL | Spliterator.IMMUTABLE;
    Spliterator<Entry<AnEnum, String>> spliterator =
        immutableEnumMap(ImmutableMap.of(AnEnum.A, "a", AnEnum.B, "b")).entrySet().spliterator();

        }
        return clazz.cast(o);
    }

    public static <U, V> List<V> map(Collection<U> list, Function<U, V> mapper) {
        return list.stream().map(mapper).filter(Objects::nonNull).collect(Collectors.toList());
    }

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * The annotated element can be {@code null}.
 *
 * @see Nonnull
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.RUNTIME)

     * @return the absolute path where files from {@link #directory()} should be copied
     *
     * @see #targetPath()
     * @see Project#getOutputDirectory(ProjectScope)
     */
    @Nonnull
    default Path targetPath(@Nonnull Project project) {
        Optional<Path> targetPath = targetPath();
        // The test for `isAbsolute()` is a small optimization for avoiding the call to `getOutputDirectory(…)`.

            }
        }

        final Map<Boolean, List<ChangelogEntry.Highlight>> groupedHighlights = entries.stream()
            .map(ChangelogEntry::getHighlight)
            .filter(Objects::nonNull)
            .collect(Collectors.groupingBy(ChangelogEntry.Highlight::isNotable, Collectors.toList()));

        final List<ChangelogEntry.Highlight> notableHighlights = groupedHighlights.getOrDefault(true, List.of());

        this.artifactTransformations = Stream.of("release", "latest", "snapshot")
                .map(artifactTransformations::get)
                .filter(Objects::nonNull)
                .collect(Collectors.toList());
    }

    @Override
    public void transformForResolve(Artifact artifact, RepositoryRequest request)

     * and Equivalence<Object>.
     */
    private final Equivalence<? super @NonNull T> equivalence;

    @ParametricNullness private final T reference;

    private Wrapper(Equivalence<? super @NonNull T> equivalence, @ParametricNullness T reference) {
      this.equivalence = checkNotNull(equivalence);
      this.reference = reference;
    }

     * and Equivalence<Object>.
     */
    private final Equivalence<? super @NonNull T> equivalence;

    @ParametricNullness private final T reference;

    private Wrapper(Equivalence<? super @NonNull T> equivalence, @ParametricNullness T reference) {
      this.equivalence = checkNotNull(equivalence);
      this.reference = reference;
    }

  @CollectionSize.Require(absent = ZERO)
  public void testSpliteratorNullable() {
    initCollectionWithNullElement();
    assertFalse(collection.spliterator().hasCharacteristics(Spliterator.NONNULL));
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testSpliteratorNotImmutable_collectionAllowsAdd() {
    // If add is supported, verify that IMMUTABLE is not reported.