@Override
      public long getLongLittleEndian(byte[] array, int offset) {
        long bigEndian = theUnsafe.getLong(array, (long) offset + BYTE_ARRAY_BASE_OFFSET);
        // The hardware is big-endian, so we need to reverse the order of the bytes.
        return Long.reverseBytes(bigEndian);
      }

      @Override
      public void putLongLittleEndian(byte[] array, int offset, long value) {

  @VisibleForTesting @Nullable Long maximumSize;
  @VisibleForTesting @Nullable Long maximumWeight;
  @VisibleForTesting @Nullable Integer concurrencyLevel;
  @VisibleForTesting @Nullable Strength keyStrength;
  @VisibleForTesting @Nullable Strength valueStrength;
  @VisibleForTesting @Nullable Boolean recordStats;
  @VisibleForTesting long writeExpirationDuration;

  @VisibleForTesting @Nullable Long maximumSize;
  @VisibleForTesting @Nullable Long maximumWeight;
  @VisibleForTesting @Nullable Integer concurrencyLevel;
  @VisibleForTesting @Nullable Strength keyStrength;
  @VisibleForTesting @Nullable Strength valueStrength;
  @VisibleForTesting @Nullable Boolean recordStats;
  @VisibleForTesting long writeExpirationDuration;

    }
  }

  /** A holder of counters for calls to hashCode, equals, and compareTo. */
  private static final class CallsCounter {
    long hashCode;
    long equals;
    long compareTo;

    long total() {
      return hashCode + equals + compareTo;
    }

    void zero() {
      hashCode = 0;
      equals = 0;
      compareTo = 0;
    }
  }

  final long maxWeight;

  /** Weigher to weigh cache entries. */
  final Weigher<K, V> weigher;

  /** How long after the last access to an entry the map will retain that entry. */
  final long expireAfterAccessNanos;

  /** How long after the last write to an entry the map will retain that entry. */
  final long expireAfterWriteNanos;

    private transient Object lock = new Object();

    final Supplier<T> delegate;
    final long durationNanos;
    transient volatile @Nullable T value;
    // The special value 0 means "not yet initialized".
    transient volatile long expirationNanos;

    ExpiringMemoizingSupplier(Supplier<T> delegate, long durationNanos) {
      this.delegate = delegate;
      this.durationNanos = durationNanos;
    }

  final long maxWeight;

  /** Weigher to weigh cache entries. */
  final Weigher<K, V> weigher;

  /** How long after the last access to an entry the map will retain that entry. */
  final long expireAfterAccessNanos;

  /** How long after the last write to an entry the map will retain that entry. */
  final long expireAfterWriteNanos;

    final int characteristics() {
      return spliterator.characteristics();
    }

    final long estimateSize() {
      return spliterator.estimateSize();
    }

    final @Nullable Comparator<? super E> getComparator() {
      return spliterator.getComparator();
    }

    final long getExactSizeIfKnown() {
      return spliterator.getExactSizeIfKnown();
    }

    final int characteristics() {
      return spliterator.characteristics();
    }

    final long estimateSize() {
      return spliterator.estimateSize();
    }

    final @Nullable Comparator<? super E> getComparator() {
      return spliterator.getComparator();
    }

    final long getExactSizeIfKnown() {
      return spliterator.getExactSizeIfKnown();
    }

    private transient Object lock = new Object();

    final Supplier<T> delegate;
    final long durationNanos;
    transient volatile @Nullable T value;
    // The special value 0 means "not yet initialized".
    transient volatile long expirationNanos;

    ExpiringMemoizingSupplier(Supplier<T> delegate, long durationNanos) {
      this.delegate = delegate;
      this.durationNanos = durationNanos;
    }