oneSizeSuite.addTest(derivedSuite);
      }
    }
    return suite;
  }

  protected List<TestSuite> createDerivedSuites(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<T, E>>
          parentBuilder) {
    return new ArrayList<>();
  }

  /** Builds a test suite for one particular {@link CollectionSize}. */
  private static final class OneSizeTestSuiteBuilder<T, E>

 *
 * @author George van den Driessche
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class OneSizeGenerator<T, E extends @Nullable Object>
    implements OneSizeTestContainerGenerator<T, E> {
  private final TestContainerGenerator<T, E> generator;
  private final CollectionSize collectionSize;

  public OneSizeGenerator(TestContainerGenerator<T, E> generator, CollectionSize collectionSize) {

import com.google.common.collect.SortedMultiset;
import com.google.common.collect.testing.AbstractTester;
import com.google.common.collect.testing.FeatureSpecificTestSuiteBuilder;
import com.google.common.collect.testing.OneSizeTestContainerGenerator;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.SetTestSuiteBuilder;
import com.google.common.collect.testing.features.Feature;

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@ElementTypesAreNonnullByDefault
public abstract class AbstractContainerTester<C, E extends @Nullable Object>
    extends AbstractTester<OneSizeTestContainerGenerator<C, E>> {
  protected SampleElements<E> samples;
  protected C container;

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