@SuppressWarnings({"unchecked", "rawtypes"})
                  public Map<Class, Impl> create(Object... elements) {
                    MutableClassToInstanceMap<Impl> map = MutableClassToInstanceMap.create();
                    for (Object object : elements) {
                      Entry<Class, Impl> entry = (Entry<Class, Impl>) object;
                      map.putInstance(entry.getKey(), entry.getValue());
                    }

                  @SuppressWarnings({"unchecked", "rawtypes"})
                  public Map<Class, Impl> create(Object... elements) {
                    MutableClassToInstanceMap<Impl> map = MutableClassToInstanceMap.create();
                    for (Object object : elements) {
                      Entry<Class, Impl> entry = (Entry<Class, Impl>) object;
                      map.putInstance(entry.getKey(), entry.getValue());
                    }

import com.google.common.util.concurrent.AbstractFutureBenchmarks.Impl;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Executor;

/** Measures the size of AbstractFuture implementations. */
public class AbstractFutureFootprintBenchmark {

  enum State {
    NOT_DONE,
    FINISHED,
    CANCELLED,
    FAILED
  }

  @Param State state;
  @Param Impl impl;

  @Param({"0", "1", "5", "10"})

import com.google.common.util.concurrent.AbstractFutureBenchmarks.Impl;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Executor;

/** Measures the size of AbstractFuture implementations. */
public class AbstractFutureFootprintBenchmark {

  enum State {
    NOT_DONE,
    FINISHED,
    CANCELLED,
    FAILED
  }

  @Param State state;
  @Param Impl impl;

  @Param({"0", "1", "5", "10"})

  })
  private int size;

  // "" means no fixed seed
  @Param("1234")
  private SpecialRandom random;

  @Param({"ImmutableSetImpl", "HashSetImpl"})
  private SetImpl impl;

  // the following must be set during setUp
  private CollectionBenchmarkSampleData sampleData;

  @BeforeExperiment
  void setUp() {
    sampleData = new CollectionBenchmarkSampleData(true, random, 0.8, size);

     */
    Interface a = new Impl();
    Interface b = new Impl();
    ImmutableSortedSet<Interface> set = ImmutableSortedSet.of(a, b);
    Object[] unused1 = set.toArray();
    Object[] unused2 = set.toArray(new Object[2]);
  }

  interface Interface extends Comparable<Interface> {}

  static class Impl implements Interface {
    static int nextId;
    Integer id = nextId++;

      return super.set(t);
    }

    @CanIgnoreReturnValue
    @Override
    public boolean setException(Throwable t) {
      return super.setException(t);
    }
  }

  enum Impl {
    NEW {
      @Override
      <T> Facade<T> newFacade() {
        return new NewAbstractFutureFacade<T>();
      }
    },
    OLD {
      @Override
      <T> Facade<T> newFacade() {

      return super.set(t);
    }

    @CanIgnoreReturnValue
    @Override
    public boolean setException(Throwable t) {
      return super.setException(t);
    }
  }

  enum Impl {
    NEW {
      @Override
      <T> Facade<T> newFacade() {
        return new NewAbstractFutureFacade<T>();
      }
    },
    OLD {
      @Override
      <T> Facade<T> newFacade() {

   * all {@code a} of type {@code A} (and similarly for {@code reverse}). Note that a {@code false}
   * result from this method does not imply that the converters are known <i>not</i> to be
   * interchangeable.
   */
  @Override
  public boolean equals(@CheckForNull Object object) {
    return super.equals(object);
  }

  // Static converters

        }

        @Override
        public void notifyNewValue(Object newValue) {}
      };

  /** Singleton placeholder that indicates a value is being loaded. */
  @SuppressWarnings("unchecked") // impl never uses a parameter or returns any non-null value
  static <K, V> ValueReference<K, V> unset() {
    return (ValueReference<K, V>) UNSET;
  }

  private enum NullEntry implements ReferenceEntry<Object, Object> {