* Multiset}.
   */
  @CanIgnoreReturnValue
  @Override
  public final boolean addAll(Collection<? extends E> elementsToAdd) {
    return Multisets.addAllImpl(this, elementsToAdd);
  }

  @CanIgnoreReturnValue
  @Override
  public final boolean removeAll(Collection<?> elementsToRemove) {
    return Multisets.removeAllImpl(this, elementsToRemove);
  }

  @CanIgnoreReturnValue

  }

  @Override
  public <T extends @Nullable Object> List<Future<T>> invokeAll(
      Collection<? extends Callable<T>> tasks) throws InterruptedException {
    return delegate().invokeAll(tasks);
  }

  @Override
  public <T extends @Nullable Object> List<Future<T>> invokeAll(
      Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
      throws InterruptedException {

  static boolean removeAllImpl(Multiset<?> self, Collection<?> elementsToRemove) {
    Collection<?> collection =
        (elementsToRemove instanceof Multiset)
            ? ((Multiset<?>) elementsToRemove).elementSet()
            : elementsToRemove;

    return self.elementSet().removeAll(collection);
  }

  /** An implementation of {@link Multiset#retainAll}. */

    }

    protected TermsQueryBuilder regTermsQ(String name, Collection<?> values) {
        checkEsInvalidQueryCollection(name, values);
        TermsQueryBuilder termsQuery = QueryBuilders.termsQuery(name, values);
        regQ(termsQuery);
        return termsQuery;
    }

    protected IdsQueryBuilder regIdsQ(Collection<String> values) {
        checkEsInvalidQueryCollection("_id", values);

  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)),

    assertTrue(copy instanceof ImmutableMultiset);
    return copy;
  }

  @CanIgnoreReturnValue
  @GwtIncompatible // SerializableTester
  static <E> Collection<E> reserializeAndAssertElementsEqual(Collection<E> original) {
    Collection<E> copy = reserialize(original);
    assertTrue(elementsEqual(original, copy));
    assertTrue(copy instanceof ImmutableCollection);
    return copy;
  }

     *
     * @see org.apache.maven.api.services.ArtifactResolver#resolve(Session, Collection)
     */
    @Nonnull
    Collection<DownloadedArtifact> resolveArtifacts(@Nonnull Collection<? extends ArtifactCoordinates> coordinates);

    /**
     * Shortcut for {@code getService(ArtifactResolver.class).resolve(...)}.
     *

    // We copy elements to an ArrayList first, rather than incurring the
    // quadratic cost of adding them to the COWAL directly.
    Collection<? extends E> elementsCollection =
        (elements instanceof Collection)
            ? (Collection<? extends E>) elements
            : newArrayList(elements);
    return new CopyOnWriteArrayList<>(elementsCollection);
  }

  /**

    /**
     * The collection of "G:A" combinations that do NOT belong to Maven Core, hence, should be excluded from
     * "expected in provided scope" type of checks.
     */
    static final Collection<String> EXPECTED_PROVIDED_SCOPE_EXCLUSIONS_GA =
            Collections.unmodifiableCollection(Arrays.asList(

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

import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**