/** A wrapped future that does not propagate cancellation to its delegate. */
  private static final class NonCancellationPropagatingFuture<V extends @Nullable Object>
      extends AbstractFuture.TrustedFuture<V> implements Runnable {
    @LazyInit private @Nullable ListenableFuture<V> delegate;

    NonCancellationPropagatingFuture(ListenableFuture<V> delegate) {
      this.delegate = delegate;
    }

    @Override
    public void run() {

    private final NavigableSet<E> delegate;
    private final SortedSet<E> unmodifiableDelegate;

    UnmodifiableNavigableSet(NavigableSet<E> delegate) {
      this.delegate = checkNotNull(delegate);
      this.unmodifiableDelegate = Collections.unmodifiableSortedSet(delegate);
    }

    @Override
    protected SortedSet<E> delegate() {
      return unmodifiableDelegate;
    }

    shared a single HTTP engine between two frontend APIs: `HttpURLConnection`
    and `Call`. With this release we’ve rearranged things so that the
    `HttpURLConnection` frontend now delegates to the `Call` APIs internally.
    This has enabled substantial simplifications and optimizations in the OkHttp
    core for both frontends.

    For most HTTP requests the consequences of this change will be negligible.

    UnmodifiableListMultimap(ListMultimap<K, V> delegate) {
      super(delegate);
    }

    @Override
    public ListMultimap<K, V> delegate() {
      return (ListMultimap<K, V>) super.delegate();
    }

    @Override
    public List<V> get(@ParametricNullness K key) {
      return Collections.unmodifiableList(delegate().get(key));
    }

    @Override

    UnmodifiableListMultimap(ListMultimap<K, V> delegate) {
      super(delegate);
    }

    @Override
    public ListMultimap<K, V> delegate() {
      return (ListMultimap<K, V>) super.delegate();
    }

    @Override
    public List<V> get(@ParametricNullness K key) {
      return Collections.unmodifiableList(delegate().get(key));
    }

    @Override

      this.concurrencyLevel = concurrencyLevel;
      this.delegate = delegate;
    }

    @Override
    protected ConcurrentMap<K, V> delegate() {
      return delegate;
    }

    void writeMapTo(ObjectOutputStream out) throws IOException {
      out.writeInt(delegate.size());
      for (Entry<K, V> entry : delegate.entrySet()) {
        out.writeObject(entry.getKey());

              @Override
              public List<String> create(String[] elements) {
                List<String> delegate = newArrayList(elements);
                return new ForwardingList<String>() {
                  @Override
                  protected List<String> delegate() {
                    return delegate;
                  }

                  @Override

              @Override
              public List<String> create(String[] elements) {
                List<String> delegate = newArrayList(elements);
                return new ForwardingList<String>() {
                  @Override
                  protected List<String> delegate() {
                    return delegate;
                  }

                  @Override

                  if (!method.getDeclaringClass().equals(type)) {
                    return method.invoke(delegate, args);
                  }
                  checkState(started.getCount() == 1);
                  started.countDown();
                  try {
                    return method.invoke(delegate, args);
                  } catch (InvocationTargetException e) {
                    throw e.getCause();

                            consumer.accept(attrName);
                        }
                    }));
        } else {
            // do nothing
        }
    }

    /**
     * Deletes a user from the LDAP directory.
     *
     * @param user the user object to delete
     */
    public void delete(final User user) {
        if (!fessConfig.isLdapAdminEnabled(user.getName())) {