/**
     * Checks if there is a previous page available.
     *
     * @return true if there is a previous page, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether there is a previous page available.
     *
     * @param existPrePage true if there is a previous page, false otherwise
     */

    implements ListenableFuture<V> {
  final boolean casListeners(@Nullable Listener expect, Listener update) {
    if (listeners == expect) {
      listeners = update;
      return true;
    }
    return false;
  }

  final @Nullable Listener gasListeners(Listener update) {
    Listener old = listeners;
    listeners = update;
    return old;
  }

  public OutputStream openStream() throws IOException {
    outputStreamOpened = true;
    bytes.reset(); // truncate
    return new Out();
  }

  private final class Out extends TestOutputStream {

    Out() throws IOException {
      super(bytes, options);
    }

    @Override
    public void close() throws IOException {
      outputStreamClosed = true;
      super.close();
    }
  }

     * executions.
     *
     * @return {@code true} if plugins should be processed, {@code false} otherwise.
     */
    boolean isProcessPlugins();

    /**
     * Controls the processing of plugin executions and configurations.
     *
     * @param processPlugins {@code true} to enable plugin processing, {@code false} otherwise.
     * @return This request, never {@code null}.

    @Override
    public String format(final Map<String, Object> source, final Set<String> excludeFields) {
        final StringBuilder json = new StringBuilder();
        json.append("{\n");

        boolean first = true;
        for (final Map.Entry<String, Object> entry : source.entrySet()) {
            final String field = entry.getKey();
            if (excludeFields.contains(field)) {
                continue;
            }

              try {
                new CountDownLatch(1).await(); // wait forever
                throw new AssertionError();
              } catch (InterruptedException e) {
                interruptedExceptionThrown.set(true);
                throw e;
              } finally {
              }
            });
    assertFalse(task.isDone());
    Thread thread =
        new Thread(
            () -> {
              try {

              public boolean tryAdvance(Consumer<? super R> action) {
                if (itrA.hasNext() && itrB.hasNext()) {
                  action.accept(function.apply(itrA.next(), itrB.next()));
                  return true;
                }
                return false;
              }
            },
            isParallel)
        .onClose(streamA::close)
        .onClose(streamB::close);
  }

  /**

			enableEncryption(t)
		}, MakeBucketOptions{
			VersioningEnabled: true,
		})
	})

	t.Run("compressed+encrypted", func(t *testing.T) {
		fn(t, func() {
			resetCompressEncryption()
			enableCompression(t, true, []string{"*"}, []string{"*"})
		}, MakeBucketOptions{})
	})
	t.Run("compressed+encrypted+versioned", func(t *testing.T) {
		fn(t, func() {
			resetCompressEncryption()

        PropertyConfiguration config = new PropertyConfiguration(props);
        assertFalse(config.isUseMultiChannel());

        props.setProperty("jcifs.smb.client.useMultiChannel", "true");
        config = new PropertyConfiguration(props);
        assertTrue(config.isUseMultiChannel());
    }

    @Test
    void testMaxChannelsProperty() throws CIFSException {

		}
	}()

	for b.Loop() {
		rb.Write(data)
	}
}

func BenchmarkRingBuffer_AsyncReadBlocking(b *testing.B) {
	const sz = 512
	const buffers = 10
	rb := New(sz * buffers)
	rb.SetBlocking(true)
	data := []byte(strings.Repeat("a", sz))
	buf := make([]byte, sz)

	go func() {
		for {
			rb.Read(buf)
		}
	}()

	for b.Loop() {
		rb.Write(data)
	}
}