otherGraph.putEdgeValue(1, 2, "valueA");
    assertThat(graph).isEqualTo(otherGraph);

    otherGraph.putEdgeValue(1, 2, "valueB");
    assertThat(graph).isNotEqualTo(otherGraph); // values differ
  }

  @Test
  public void incidentEdges_stableIncidentEdgeOrder_preservesIncidentEdgesOrder_directed() {
    graph = ValueGraphBuilder.directed().incidentEdgeOrder(ElementOrder.stable()).build();

 *       then as many exception-testing methods as there are exceptions the method can throw.
 *       Sometimes there are multiple tests per JSR166 method when the different "normal" behaviors
 *       differ significantly. And sometimes testcases cover multiple methods when they cannot be
 *       tested in isolation.
 *   <li>The documentation style for testcases is to provide as javadoc a simple sentence or two

    /*
     * These gymnastics are a little confusing. Basically this class has neither legacy nor
     * non-legacy behavior; it just needs to let the behaviors of the backing converters shine
     * through (which might even differ from each other!). So, we override the correctedDo* methods,
     * after which the do* methods should never be reached.
     */

    @Override
    protected C doForward(A a) {
      throw new AssertionError();

 *       then as many exception-testing methods as there are exceptions the method can throw.
 *       Sometimes there are multiple tests per JSR166 method when the different "normal" behaviors
 *       differ significantly. And sometimes testcases cover multiple methods when they cannot be
 *       tested in isolation.
 *   <li>The documentation style for testcases is to provide as javadoc a simple sentence or two

    /*
     * These gymnastics are a little confusing. Basically this class has neither legacy nor
     * non-legacy behavior; it just needs to let the behaviors of the backing converters shine
     * through (which might even differ from each other!). So, we override the correctedDo* methods,
     * after which the do* methods should never be reached.
     */

    @Override
    protected C doForward(A a) {
      throw new AssertionError();

    otherGraph.putEdgeValue(1, 2, "valueA");
    assertThat(graph).isEqualTo(otherGraph);

    otherGraph.putEdgeValue(1, 2, "valueB");
    assertThat(graph).isNotEqualTo(otherGraph); // values differ
  }

  @Test
  public void incidentEdges_stableIncidentEdgeOrder_preservesIncidentEdgesOrder_directed() {
    graph = ValueGraphBuilder.directed().incidentEdgeOrder(ElementOrder.stable()).build();

   *     control and the underlying method or constructor is inaccessible.
   * @throws IllegalArgumentException if the number of actual and formal parameters differ; if an
   *     unwrapping conversion for primitive arguments fails; or if, after possible unwrapping, a
   *     parameter value cannot be converted to the corresponding formal parameter type by a method

  // except that when sortedDelegate's comparator is null, it points to a
  // non-null instance of Ordering.natural().
  // (cpovirk: Is sortedDelegate's comparator really ever null?)
  // The comparator will likely also differ because of our nullAccepting hack.
  // See the bottom of the file for more information about it.
  private final transient Comparator<? super K> comparator;