*
 * @author Sven Mawson
 * @since 1.0
 */
@GwtCompatible
public abstract class ForwardingFuture<V extends @Nullable Object> extends ForwardingObject
    implements Future<V> {
  /** Constructor for use by subclasses. */
  protected ForwardingFuture() {}

  @Override
  protected abstract Future<? extends V> delegate();

  @Override
  @CanIgnoreReturnValue

public abstract class ForwardingMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingObject implements Map<K, V> {
  // TODO(lowasser): identify places where thread safety is actually lost

  /** Constructor for use by subclasses. */
  protected ForwardingMap() {}

  @Override
  protected abstract Map<K, V> delegate();

  @Override
  public int size() {
    return delegate().size();
  }

  @Override

        // Verify that the constructor correctly sets the delegate (inherited from CIFSContextWrapper)
        // and the credentials. The delegate is tested implicitly by calling super's methods.
        // We can directly test getCredentials() to ensure it returns the initial credentials.
        assertEquals(mockCredentials, wrapper.getCredentials(), "Initial credentials should be set by constructor");
    }

    @Test

   * use the {@code HashSet} constructor directly, taking advantage of <a
   * href="https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#type-inference-instantiation">"diamond"
   * syntax</a>.
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call
  public static <E extends @Nullable Object> HashSet<E> newHashSet() {

        // initialise with distinct pattern to detect unused trailing bytes
        byte[] buf = new byte[length];
        Arrays.fill(buf, (byte) 0xFF);
        return buf;
    }

    @Test
    @DisplayName("constructor initialises command and parameters correctly")
    void testConstructorInitialisesFields() throws Exception {
        int level = 42;
        Trans2QueryFSInformation cmd = new Trans2QueryFSInformation(level);

  private final ReferenceQueue<Object> queue;

  // By preference, we will use the Thread constructor that has an `inheritThreadLocals` parameter.
  // But before Java 9, our only way not to inherit ThreadLocals is to zap them after the thread
  // is created, by accessing a private field.
  private static final @Nullable Constructor<Thread> bigThreadConstructor =
      getBigThreadConstructor();

        }
        return true;
    }

    @Override
    public User load(final User user) {
        return user;
    }

    /**
     * Default constructor for CommandChain.
     */
    public CommandChain() {
        // Default constructor
    }

    /**
     * Checks if the given username is a target user for command execution.
     * @param username The username to check.

### Existing properties in existing classes

This is out of scope for this ADR.  Migrating an existing property to lazy types is being handled in a different way.

### Conventions

 *
 * @author Shardul Deo
 * @since 4.0
 */
@GwtCompatible
public abstract class ForwardingListenableFuture<V extends @Nullable Object>
    extends ForwardingFuture<V> implements ListenableFuture<V> {

  /** Constructor for use by subclasses. */
  protected ForwardingListenableFuture() {}

  @Override
  protected abstract ListenableFuture<? extends V> delegate();

  @Override

 *
 * @author Louis Wasserman
 * @since 15.0
 */
@GwtCompatible
public abstract class ForwardingSortedMultiset<E extends @Nullable Object>
    extends ForwardingMultiset<E> implements SortedMultiset<E> {
  /** Constructor for use by subclasses. */
  protected ForwardingSortedMultiset() {}

  @Override
  protected abstract SortedMultiset<E> delegate();

  @Override
  public NavigableSet<E> elementSet() {