}

  @Override
  public NavigableSet<E> elementSet() {
    return (NavigableSet<E>) super.elementSet();
  }

  @Override
  NavigableSet<E> createElementSet() {
    return new SortedMultisets.NavigableElementSet<>(this);
  }

  @Override
  public Comparator<? super E> comparator() {
    return comparator;
  }

  @Override
  public @Nullable Entry<E> firstEntry() {

  }

  @Override
  public Set<N> adjacentNodes() {
    return Collections.unmodifiableSet(adjacentNodeValues.keySet());
  }

  @Override
  public Set<N> predecessors() {
    return adjacentNodes();
  }

  @Override
  public Set<N> successors() {
    return adjacentNodes();
  }

  @Override
  public Iterator<EndpointPair<N>> incidentEdgeIterator(N thisNode) {

  }

  // enum singleton pattern
  private enum ToStringFunction implements Function<Object, String> {
    INSTANCE;

    @Override
    public String apply(Object o) {
      checkNotNull(o); // eager for GWT.
      return o.toString();
    }

    @Override
    public String toString() {
      return "Functions.toStringFunction()";
    }
  }

  /**
   * Returns the identity function.
   *

              public int hashCode() {
                return map.hashCode();
              }

              @Override
              public boolean equals(@Nullable Object o) {
                return map.equals(o);
              }

              @Override
              public String toString() {
                return map.toString();
              }

              @Override

    @Override
    public String getProjectName() {
        return null;
    }

    @Override
    public String getProjectPrefix() {
        return null;
    }

    @Override
    public String getGenerationGapBasePrefix() {
        return null;
    }

    @Override
    public DBDef getCurrentDBDef() {
        return null;
    }

    }

    @Override
    public Properties getRequestProperties() {
        return requestProperties;
    }

    @Override
    public Map<String, Profile> getProfilesById() {
        return profilesById;
    }

    /* (non-Javadoc)
     * @see org.apache.maven.profiles.ProfileManager#addProfile(org.apache.maven.model.Profile)
     */
    @Override
    public void addProfile(Profile profile) {

      this.iterator = iterator;
    }

    @Override
    public boolean hasNext() {
      return iterator.hasNext();
    }

    @Override
    public T next() {
      try {
        return iterator.next();
      } catch (NoSuchElementException e) {
        nextThrewException = true;
        throw e;
      }
    }

    @Override
    public void remove() {
      if (nextThrewException) {

              @Override
              protected Set<String> create(String[] elements) {
                String[] deduped = dedupe(elements);
                return new AbstractSet<String>() {
                  @Override
                  public int size() {
                    return deduped.length;
                  }

                  @Override
                  public Iterator<String> iterator() {

        }

        override fun onMessage(
          webSocket: WebSocket,
          text: String,
        ) {
          webSocket.send(text)
        }

        override fun onClosing(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) {
          webSocket.close(1000, null)
          latch.countDown()
        }

        override fun onFailure(

  @CanIgnoreReturnValue // to skip a line
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public String readLine() {
    throw new UnsupportedOperationException("readLine is not supported");
  }

  @Override
  public void readFully(byte[] b) throws IOException {
    ByteStreams.readFully(this, b);
  }

  @Override
  public void readFully(byte[] b, int off, int len) throws IOException {