Stopwatch stopwatch = Stopwatch.createStarted();

    String result = proxy.sleepThenReturnInput("x");

    assertThat(result).isEqualTo("x");
    assertThat(stopwatch.elapsed(MILLISECONDS)).isIn(Range.closed(DELAY_MS, ENOUGH_MS));
    assertThat(target.finished).isTrue();
  }

  public void testNewProxy_goodMethodWithNotEnoughTime() throws Exception {
    SampleImpl target = new SampleImpl(9999);

   * {@link ByteStreams} method returns a singleton stream whose {@code close} method has no effect,
   * while the {@link OutputStream} method returns a new instance whose {@code write} methods throw
   * if called on a closed stream.
   *
   * @since 14.0 (since 1.0 as com.google.common.io.NullOutputStream)
   */
  public static OutputStream nullOutputStream() {

    of unacknowledged data per stream and no per-connection limit.

 *  Fix: Don't close a `Deflater` while we're still using it to compress a web socket message. We
    had a severe bug where web sockets were closed on the wrong thread, which caused
    `NullPointerException` crashes in `Deflater`.

     */
    @Test
    void testClose_multipleTimes() {
        doNothing().when(smbTree).close();

        smbTree.close();
        smbTree.close();
        smbTree.close();

        verify(smbTree, times(3)).close();
    }

    /**
     * Test for close() method throwing exception.
     * Verifies behavior when close throws an exception.
     */
    @Test
    void testClose_throwsException() {

      return multiset().subMultiset(fromElement, CLOSED, toElement, OPEN).elementSet();
    }

    @Override
    public SortedSet<E> headSet(@ParametricNullness E toElement) {
      return multiset().headMultiset(toElement, OPEN).elementSet();
    }

    @Override
    public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
      return multiset().tailMultiset(fromElement, CLOSED).elementSet();
    }

    @Override

   * returned range is {@linkplain BoundType#CLOSED closed} on both ends.
   *
   * @since 14.0
   */
  public static <C extends Comparable<?>> Range<C> singleton(C value) {
    return closed(value, value);
  }

  /**
   * Returns the minimal range that {@linkplain Range#contains(Comparable) contains} all of the
   * given values. The returned range is {@linkplain BoundType#CLOSED closed} on both ends.
   *

						return true, nil
					}
					return false, err
				}
				err = d.deserialize(r)
				r.Close()
				return err != nil, nil
			case InsufficientReadQuorum, StorageErr:
				return true, nil
			}
			return false, err
		}
		err = d.deserialize(r)
		r.Close()
		return err != nil, nil
	}

	// Caches are read+written without locks,
	retries := 0
	for retries < 5 {

        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }); // exceeds threshold

        // ## Act & Assert ##
        // Multiple close() calls should be safe
        cos.close();
        cos.close();
        cos.close();
    }

        doThrow(new CIFSException("Failed to close")).when(smbFileHandle).close(lastWriteTime);
        assertThrows(CIFSException.class, () -> smbFileHandle.close(lastWriteTime),
                "close(long) should throw CIFSException when closing fails.");
        verify(smbFileHandle, times(1)).close(lastWriteTime);
    }

    /**
     * Test close() successfully.
     *
     * @throws CIFSException
     */

        }
        if (httpClient != null) {
            try {
                httpClient.close();
                if (logger.isDebugEnabled()) {
                    logger.debug("HTTP client closed successfully");
                }
            } catch (final IOException e) {
                logger.warn("Failed to close HTTP client", e);
            }
            httpClient = null;