}

            legacySupport.setSession(session);

            // NOTE: DuplicateArtifactAttachmentException is currently unchecked, so be careful removing this try/catch!
            // This is necessary to avoid creating compatibility problems for existing plugins that use
            // MavenProjectHelper.attachArtifact(..).
            try {

          // operations only in weird cases like checking for an EndpointPair<ArrayList> in a
          // Network<LinkedList>.
          @SuppressWarnings("unchecked")
          @Override
          public boolean contains(@Nullable Object obj) {
            if (!(obj instanceof EndpointPair)) {
              return false;
            }

    stream.writeObject(keyComparator());
    stream.writeObject(valueComparator());
    Serialization.writeMultimap(this, stream);
  }

  @GwtIncompatible
  @J2ktIncompatible
    @SuppressWarnings("unchecked") // reading data stored by writeObject
  private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();

            return new SimpleSession(mavenSession, getRepositorySystem(), repositories);
        }

        @SuppressWarnings("unchecked")
        @Override
        public <T extends Service> T getService(Class<T> clazz) throws NoSuchElementException {
            if (clazz == ArtifactCoordinatesFactory.class) {

    /* MNG-4129 */
    @Test
    void testPluginExecutionInheritanceWhenChildDoesNotDeclarePlugin() throws Exception {
        PomTestWrapper pom = buildPom("plugin-exec-inheritance/wo-merge");
        @SuppressWarnings("unchecked")
        List<PluginExecution> executions = (List<PluginExecution>) pom.getValue(
                "build/pluginsAsMap[@name='org.apache.maven.its.plugins:maven-it-plugin-log-file']/executions");

 *
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class RegularImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
  @SuppressWarnings("unchecked") // TODO(cpovirk): Consider storing Entry<?, ?>[] instead.
  static final RegularImmutableBiMap<Object, Object> EMPTY =
      new RegularImmutableBiMap<>(

   *
   * <p>No observable state associated with this cache is modified until loading completes.
   *
   * @throws ExecutionException if a checked exception was thrown while loading the value
   * @throws UncheckedExecutionException if an unchecked exception was thrown while loading the
   *     value
   * @throws ExecutionError if an error was thrown while loading the value
   * @since 11.0
   */

  public static ComparisonChain start() {
    return ACTIVE;
  }

  private static final ComparisonChain ACTIVE =
      new ComparisonChain() {
        @SuppressWarnings("unchecked") // unsafe; see discussion on supertype
        @Override
        public ComparisonChain compare(Comparable<?> left, Comparable<?> right) {
          return classify(((Comparable<Object>) left).compareTo(right));
        }

    }

    private String mojoInfo(MojoDescriptor mojoDescriptor, Class<?> mojoClass) {
        return mojoDescriptor.getFullGoalName() + " (" + mojoClass.getName() + ")";
    }

    @SuppressWarnings("unchecked")
    private ConcurrentHashMap<String, PluginValidationIssues> pluginIssues(RepositorySystemSession session) {
        return (ConcurrentHashMap<String, PluginValidationIssues>)

        return o != null;
      }

      @Override
      public String toString() {
        return "Predicates.notNull()";
      }
    };

    @SuppressWarnings("unchecked") // safe contravariant cast
    <T extends @Nullable Object> Predicate<T> withNarrowedType() {
      return (Predicate<T>) this;
    }
  }

  /**
   * @see Predicates#not(Predicate)
   */