//
  // Graph-level accessors
  //

  /** Returns all nodes in this graph, in the order specified by {@link #nodeOrder()}. */
  @Override
  Set<N> nodes();

  /** Returns all edges in this graph. */
  @Override
  Set<EndpointPair<N>> edges();

  //
  // Graph properties
  //

  /**

        }

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

        @Override
        public Map<String, String[]> getFields() {
            return null;
        }

        @Override
        public Map<String, String[]> getConditions() {
            return null;
        }

        @Override
        public String[] getLanguages() {

    @Override
    public AccessTokenDbm asDBMeta() {
        return AccessTokenDbm.getInstance();
    }

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

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {

    @Override
    public FailureUrlDbm asDBMeta() {
        return FailureUrlDbm.getInstance();
    }

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

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {

    @Override
    public RelatedContentDbm asDBMeta() {
        return RelatedContentDbm.getInstance();
    }

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

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {

    @Inject
    private ArtifactResolver artifactResolver;

    private Artifact projectArtifact;

    @BeforeEach
    @Override
    public void setUp() throws Exception {
        super.setUp();

        projectArtifact = createLocalArtifact("project", "3.0");
    }

    @Override
    protected DefaultRepositorySystemSession initRepoSession() throws Exception {

abstract class ForwardingLock implements Lock {
  abstract Lock delegate();

  @Override
  public void lock() {
    delegate().lock();
  }

  @Override
  public void lockInterruptibly() throws InterruptedException {
    delegate().lockInterruptibly();
  }

  @Override
  public boolean tryLock() {
    return delegate().tryLock();
  }

  @Override
  public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {

        super(source, cliManager, commandLine);
    }

    @Override
    @Nonnull
    public Optional<List<String>> goals() {
        if (!commandLine.getArgList().isEmpty()) {
            return Optional.of(commandLine.getArgList());
        }
        return Optional.empty();
    }

    @Override
    @Nonnull
    public Optional<String> modelVersion() {

    assertEquals(1, FluentIterable.from(asList("a")).size());
  }

  public void testSize2NonCollection() {
    Iterable<Integer> iterable =
        new Iterable<Integer>() {
          @Override
          public Iterator<Integer> iterator() {
            return asList(0, 1).iterator();
          }
        };
    assertEquals(2, FluentIterable.from(iterable).size());
  }

         */

        return dstIndex - start;
    }

    @Override
    int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {