@ForOverride
  abstract void setResult(@ParametricNullness T result);

  @Override
  protected final void afterDone() {
    @RetainedLocalRef ListenableFuture<? extends I> localInputFuture = inputFuture;
    maybePropagateCancellationTo(localInputFuture);
    this.inputFuture = null;
    this.function = null;
  }

  @Override
  protected @Nullable String pendingToString() {

    }

    @Override
    public List<ArtifactVersion> retrieveAvailableVersions(
            Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
            throws ArtifactMetadataRetrievalException {
        throw new UnsupportedOperationException("Cannot get available versions in this test case");
    }

    @Override

     */
    @Override
    public void saveSession(final String sessionId) {
        // TODO use cache
    }

    /**
     * Checks if a URL has been visited by looking in both the queue and access results.
     *
     * @param urlQueue The URL queue entry to check.
     * @return true if the URL has been visited, false otherwise.
     */
    @Override

    //                                                                             =======
    @Override
    public BadWordDbm asDBMeta() {
        return BadWordDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "bad_word";
    }

    // ===================================================================================

      }
    }
  }

  @Override
  @Test
  public void nodes_checkReturnedSetMutability() {
    Set<Integer> nodes = network.nodes();
    assertThrows(UnsupportedOperationException.class, () -> nodes.add(N2));
    addNode(N1);
    assertThat(network.nodes()).containsExactlyElementsIn(nodes);
  }

  @Override
  @Test
  public void edges_checkReturnedSetMutability() {

        if (options.model().isPresent()) {
            return options.model().get();
        }

        return false;
    }

    @Override
    public String getDescription() {
        return "Applying Maven 4 compatibility fixes";
    }

    @Override
    public UpgradeResult doApply(UpgradeContext context, Map<Path, Document> pomMap) {
        Set<Path> processedPoms = new HashSet<>();

    //                                                                              ======
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameDict()));
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    private final URL url;

    private UrlByteSource(URL url) {
      this.url = checkNotNull(url);
    }

    @Override
    public InputStream openStream() throws IOException {
      return url.openStream();
    }

    @Override
    public String toString() {
      return "Resources.asByteSource(" + url + ")";
    }
  }

  /**

  }

  private RequestBody gzip(final RequestBody body) {
    return new RequestBody() {
      @Override public MediaType contentType() {
        return body.contentType();
      }

      @Override public long contentLength() {
        return -1; // We don't know the compressed length in advance!
      }

      @Override public void writeTo(BufferedSink sink) throws IOException {

    @Override
    public int size() {
      return parent.length();
    }

    @Override
    public Long get(int index) {
      return parent.get(index);
    }

    @Override
    public boolean contains(@Nullable Object target) {
      return indexOf(target) >= 0;
    }

    @Override
    public int indexOf(@Nullable Object target) {