.usingGenerator(oneSizeGenerator)
              .withFeatures(oneSizeFeatures)
              .withSetUp(getSetUp())
              .withTearDown(getTearDown())
              .suppressing(oneSizeSuppressedTests);
      TestSuite oneSizeSuite = oneSizeBuilder.createTestSuite();
      suite.addTest(oneSizeSuite);

      for (TestSuite derivedSuite : createDerivedSuites(oneSizeBuilder)) {

  }

  /**
   * Returns the {@link Method} instance for {@link #testCreateWithNullKeyUnsupported()} so that
   * tests can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a
   * href="https://bugs.openjdk.org/browse/JDK-5045147">JDK-5045147</a> is fixed.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getCreateWithNullKeyUnsupportedMethod() {

                return navigableSet.descendingSet();
              }
            })
        .named(parentBuilder.getName() + " descending")
        .withFeatures(features)
        .suppressing(parentBuilder.getSuppressedTests())
        .createTestSuite();
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {

                    }));
  }

  /**
   * Returns the {@link Method} instance for {@link #testMergeNullValue()} so that tests of {@link
   * Hashtable} can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()}.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getMergeNullValueMethod() {
    return Helpers.getMethod(MapMergeTester.class, "testMergeNullValue");
  }

    features.addAll(parentBuilder.getFeatures());

    return newBuilderUsing(delegate, to, from)
        .named(parentBuilder.getName() + " subMap " + from + "-" + to)
        .withFeatures(features)
        .suppressing(parentBuilder.getSuppressedTests())
        .withSetUp(parentBuilder.getSetUp())
        .withTearDown(parentBuilder.getTearDown())
        .createTestSuite();
  }

  }

  /**
   * Returns the {@link Method} instance for {@link #testCreateWithNullKeyUnsupported()} so that
   * tests can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a
   * href="https://bugs.openjdk.org/browse/JDK-5045147">JDK-5045147</a> is fixed.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getCreateWithNullKeyUnsupportedMethod() {

   * of {@link java.util.Collections#checkedCollection(java.util.Collection, Class)} can suppress it
   * with {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a
   * href="https://bugs.openjdk.org/browse/JDK-6409434">JDK-6409434</a> is fixed. It's unclear
   * whether nulls were to be permitted or forbidden, but presumably the eventual fix will be to

              .named(getName() + " reserialized")
              .withFeatures(computeReserializedCollectionFeatures(parentBuilder.getFeatures()))
              .suppressing(parentBuilder.getSuppressedTests())
              .withSetUp(parentBuilder.getSetUp())
              .withTearDown(parentBuilder.getTearDown())
              .createTestSuite());
    }
    return derivedSuites;

              .named(getName() + " reserialized")
              .withFeatures(computeReserializedCollectionFeatures(parentBuilder.getFeatures()))
              .suppressing(parentBuilder.getSuppressedTests())
              .withSetUp(parentBuilder.getSetUp())
              .withTearDown(parentBuilder.getTearDown())
              .createTestSuite());
    }
    return derivedSuites;

    return subSuiteUsing(new DescendingTestMapGenerator<K, V>(delegate))
        .named(parentBuilder.getName() + " descending")
        .withFeatures(features)
        .suppressing(parentBuilder.getSuppressedTests())
        .createTestSuite();
  }

  NavigableMapTestSuiteBuilder<K, V> subSuiteUsing(TestSortedMapGenerator<K, V> generator) {
    return using(generator);
  }