// if already there we remove it and add again
        int index = attachedArtifacts.indexOf(artifact);
        if (index >= 0) {
            LOGGER.warn("artifact '{}' already attached, replacing previous instance", artifact);
            attachedArtifacts.set(index, artifact);
        } else {
            attachedArtifacts.add(artifact);
        }
    }

    /**

    TF_ImportGraphDefResults* results);

// Import the graph serialized in `graph_def` into `graph`.  Returns nullptr and
// a bad status on error. Otherwise, returns a populated
// TF_ImportGraphDefResults instance. The returned instance must be deleted via
// TF_DeleteImportGraphDefResults().
TF_CAPI_EXPORT extern TF_ImportGraphDefResults*
TF_GraphImportGraphDefWithResults(TF_Graph* graph, const TF_Buffer* graph_def,

          ImmutableSortedSet.emptySet(comparator), ImmutableList.<V>of());
    }
  }

  /**
   * Returns the empty sorted map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  // unsafe, comparator() returns a comparator on the specified type
  // TODO(kevinb): evaluate whether or not of().comparator() should return null

  private static final Object NULL = new Object();

  /** A special value to represent failure, when {@link #setException} is called successfully. */
  private static final class Failure {
    static final Failure FALLBACK_INSTANCE =
        new Failure(
            new Throwable("Failure occurred while trying to finish a future.") {
              @Override
              public synchronized Throwable fillInStackTrace() {

    }
  }

  private TypeToken(Type type) {
    this.runtimeType = checkNotNull(type);
  }

  /** Returns an instance of type token that wraps {@code type}. */
  public static <T> TypeToken<T> of(Class<T> type) {
    return new SimpleTypeToken<>(type);
  }

  /** Returns an instance of type token that wraps {@code type}. */
  public static TypeToken<?> of(Type type) {
    return new SimpleTypeToken<>(type);
  }

    feed2_ = Placeholder(graph_, s_, "feed2");
    ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

    constant_ = ScalarConst(10, graph_, s_);
    ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

    desc_ = TF_NewOperation(graph_, "AddN", "add");
    TF_Output inputs[] = {{feed1_, 0}, {constant_, 0}};
    TF_AddInputList(desc_, inputs, TF_ARRAYSIZE(inputs));
  }

  ~CApiColocationTest() override {

        addViolation(
                problems,
                severity,
                version,
                fieldName,
                null,
                "contains an expression but should be a constant.",
                tracker);

        return false;
    }

    private boolean validateVersionNoExpression(
            String fieldName,
            ModelProblemCollector problems,

    peer.play()
    val longString = repeat('a', Http2.INITIAL_MAX_FRAME_SIZE + 1)
    val socket = peer.openSocket()
    val connection =
      Http2Connection.Builder(true, TaskRunner.INSTANCE)
        .socket(socket)
        .pushObserver(IGNORE)
        .build()
    connection.start(sendConnectionPreface = false)
    socket.shutdownOutput()
    assertFailsWith<IOException> {

   * This is an enum singleton rather than an anonymous class so ProGuard can figure out it's only
   * referenced by emptyModifiableIterator().
   */
  private enum EmptyModifiableIterator implements Iterator<Object> {
    INSTANCE;

    @Override
    public boolean hasNext() {
      return false;
    }

    @Override
    public Object next() {
      throw new NoSuchElementException();
    }

    @Override

   * This is an enum singleton rather than an anonymous class so ProGuard can figure out it's only
   * referenced by emptyModifiableIterator().
   */
  private enum EmptyModifiableIterator implements Iterator<Object> {
    INSTANCE;

    @Override
    public boolean hasNext() {
      return false;
    }

    @Override
    public Object next() {
      throw new NoSuchElementException();
    }

    @Override