public int getHash() {
      return hash;
    }

    @Override
    public K getKey() {
      return key;
    }

    private long accessTime = Long.MAX_VALUE;

    @Override
    public long getAccessTime() {
      return accessTime;
    }

    @Override
    public void setAccessTime(long time) {
      this.accessTime = time;
    }

    public int getHash() {
      return hash;
    }

    @Override
    public K getKey() {
      return key;
    }

    private long accessTime = Long.MAX_VALUE;

    @Override
    public long getAccessTime() {
      return accessTime;
    }

    @Override
    public void setAccessTime(long time) {
      this.accessTime = time;
    }

    }

    @Override
    public boolean areEqual() {
      return onlyOnLeft.isEmpty() && onlyOnRight.isEmpty() && differences.isEmpty();
    }

    @Override
    public Map<K, V> entriesOnlyOnLeft() {
      return onlyOnLeft;
    }

    @Override
    public Map<K, V> entriesOnlyOnRight() {
      return onlyOnRight;
    }

    @Override
    public Map<K, V> entriesInCommon() {

@J2ktIncompatible
@ElementTypesAreNonnullByDefault
// TODO(dpb): GWT compatibility.
public final class ClosingFuture<V extends @Nullable Object> {

  private static final LazyLogger logger = new LazyLogger(ClosingFuture.class);

  /**
   * An object that can capture objects to be closed later, when a {@link ClosingFuture} pipeline is
   * done.
   */
  public static final class DeferredCloser {