public class CollectionSerializationTester<E> extends AbstractCollectionTester<E> {
  @CollectionFeature.Require(SERIALIZABLE)
  public void testReserialize() {
    // For a bare Collection, the most we can guarantee is that the elements are preserved.
    assertEqualIgnoringOrder(actualContents(), SerializableTester.reserialize(actualContents()));
  }

 * <a href="https://codehaus-plexus.github.io/plexus-utils/apidocs/org/codehaus/plexus/util/xml/Xpp3Dom.html">Xpp3Dom</a> for
 * DOM content representation (see <code>&lt;configuration&gt;</code> elements).
 */

 *
 * @author Louis Wasserman
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum MultisetFeature implements Feature<Multiset> {
  /**
   * Indicates that elements from {@code Multiset.entrySet()} update to reflect changes in the
   * backing multiset.
   */
  ENTRIES_ARE_VIEWS;

  @Override
  public Set<Feature<? super Multiset>> getImpliedFeatures() {
    return emptySet();

        List<Profile> active = selector.getActiveProfiles(profiles, context, problems);
        assertTrue(
                active.isEmpty(), "Expected collection to be empty but had " + active.size() + " elements: " + active);
        assertEquals(1, problems.getErrors().size());
        assertEquals(
                "Failed to determine activation for profile one: BOOM",
                problems.getErrors().get(0));
    }

public interface ExecutionEvent {

    /**
     * The possible types of execution events.
     *
     * Note: do not modify this enum, or, make sure that this enum and
     * {@link org.apache.maven.api.EventType} have same elements in same order.
     */
    enum Type {
        ProjectDiscoveryStarted,
        SessionStarted,
        SessionEnded,
        ProjectSkipped,
        ProjectStarted,
        ProjectSucceeded,

import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**
 * Provides information about artifacts (identified by groupId:artifactId string key) and classpath elements exported by
 * Maven core itself and loaded Maven core extensions.
 *
 * @since 3.3.0
 */
public class CoreExports {
    private final Set<String> artifacts;

    private final Map<String, ClassLoader> packages;

        File f = getFileForClasspathResource("canonical-pom.xml");

        MavenProject project = getProject(f);

        // ----------------------------------------------------------------------
        // Top-level elements
        // ----------------------------------------------------------------------

        assertEquals("4.0.0", project.getModelVersion());

        // ----------------------------------------------------------------------

     */
    ParameterizedClassDesc getParameterizedClassDesc();

    /**
     * Returns the element type if the method's parameter type at the specified index is a parameterized {@link Collection}.
     *
     * @param index
     *            the index of the parameter
     * @return the element type if the parameter type at the specified index is a parameterized {@link Collection}, otherwise {@literal null}
     */

  public void testPutAllNullForbidden() {
    assertThrows(NullPointerException.class, () -> multimap().putAll(null, singletonList(v3())));
  }

  @SuppressWarnings("EmptyList") // ImmutableList doesn't support nullable element types
  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAllEmptyCollectionOnAbsentKey() {
    assertFalse(multimap().putAll(k3(), Collections.emptyList()));
    expectUnchanged();
  }

import javax.xml.transform.dom.DOMSource
import javax.xml.transform.stream.StreamResult
import org.w3c.dom.Document
import org.w3c.dom.Element
import org.w3c.dom.Node

class XIncludeAwareXmlProvider {

    Document root

    Element parse(File sourceFile) {
        root = parseSourceFile(sourceFile)
        root.documentElement
    }

    Node emptyDoc() {