void onSuccess(@ParametricNullness V result);

  /**
   * Invoked when a {@code Future} computation fails or is canceled.
   *
   * <p>If the future's {@link Future#get() get} method throws an {@link ExecutionException}, then
   * the cause is passed to this method. Any other thrown object is passed unaltered.
   */
  void onFailure(Throwable t);

    public String getRegistrationId() {
        return registrationId;
    }

    /**
     * Sets the registration ID to unregister.
     *
     * @param registrationId the registration ID
     */
    public void setRegistrationId(String registrationId) {
        this.registrationId = registrationId;
    }

    /**
     * Gets the context handle.
     *
     * @return the context handle
     */

     * @throws DcerpcException if the wrapping operation fails
     */
    void wrap(NdrBuffer outgoing) throws DcerpcException;

    /**
     * Unwraps incoming DCERPC message data after security processing
     * @param incoming the buffer containing data to be unwrapped
     * @throws DcerpcException if the unwrapping operation fails
     */
    void unwrap(NdrBuffer incoming) throws DcerpcException;

    MetadataGraphEdge e1;
    MetadataGraphEdge e2;
    MetadataGraphEdge e3;

    // ------------------------------------------------------------------------------------------
    @BeforeEach
    void setUp() throws Exception {
        policy = new DefaultGraphConflictResolutionPolicy();
        e1 = new MetadataGraphEdge("1.1", true, null, null, 2, 1);
        e2 = new MetadataGraphEdge("1.2", true, null, null, 3, 2);

    }

    @Override
    public List<Problem> getProblems() {
        return problems;
    }

    @Override
    public void setSource(String source) {
        this.source = source;
    }

    @Override
    public void add(Problem.Severity severity, String message, int line, int column, Exception cause) {
        Problem problem = new DefaultProblem(message, severity, source, line, column, cause);

      }
    }

    private void recomputeMultiset() {
      this.distinctElements =
          1 + TreeMultiset.distinctElements(left) + TreeMultiset.distinctElements(right);
      this.totalCount = elemCount + totalCount(left) + totalCount(right);
    }

    private void recomputeHeight() {
      this.height = 1 + max(height(left), height(right));
    }

    private void recompute() {
      recomputeMultiset();

   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void put(Range<K> range, V value) {
    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the {@code RangeMap} unmodified.
   *

    }

    private void injectSession1(RepositoryRequest request, MavenSession session) {
        if (session != null) {
            request.setOffline(session.isOffline());
            request.setForceUpdate(session.getRequest().isUpdateSnapshots());
        }
    }

    private void injectSession2(ArtifactResolutionRequest request, MavenSession session) {

     */
    public void setDuplicateHostList(final List<DuplicateHost> duplicateHostList) {
        this.duplicateHostList = duplicateHostList;
    }

    /**
     * Adds a new duplicate host rule to the list.
     * Initializes the list if it doesn't exist.
     *
     * @param duplicateHost the duplicate host rule to add
     */
    public void add(final DuplicateHost duplicateHost) {

    assertThat(copy.entrySet()).containsExactly(mapEntry(AnEnum.A, AnEnum.A));
  }

  public void testEmptyImmutableEnumMap() {
    ImmutableMap<AnEnum, String> map = Maps.immutableEnumMap(ImmutableMap.<AnEnum, String>of());
    assertEquals(ImmutableMap.of(), map);
  }

  public void testImmutableEnumMapOrdering() {
    ImmutableMap<AnEnum, String> map =