The rabbit-hole went straight on like a tunnel for some way,
and then dipped suddenly down, so suddenly that Alice had not a
moment to think about stopping herself before she found herself
falling down a very deep well.

  Either the well was very deep, or she fell very slowly, for she
had plenty of time as she went down to look about her and to
wonder what was going to happen next.  First, she tried to look

      if (!onlyOnLeft.isEmpty()) {
        result.append(": only on left=").append(onlyOnLeft);
      }
      if (!onlyOnRight.isEmpty()) {
        result.append(": only on right=").append(onlyOnRight);
      }
      if (!differences.isEmpty()) {
        result.append(": value differences=").append(differences);
      }
      return result.toString();
    }
  }

    boolean done = doneSignal.await(1, TimeUnit.SECONDS);
    if (!done) {
      StringBuilder builder = new StringBuilder();
      for (StackTraceElement trace : thread.getStackTrace()) {
        builder.append("\tat ").append(trace).append('\n');
      }
      fail(builder.toString());
    }
  }

  /**
   * Returns an iterable containing all combinations of maximumSize, expireAfterAccess/Write,

    boolean done = doneSignal.await(1, TimeUnit.SECONDS);
    if (!done) {
      StringBuilder builder = new StringBuilder();
      for (StackTraceElement trace : thread.getStackTrace()) {
        builder.append("\tat ").append(trace).append('\n');
      }
      fail(builder.toString());
    }
  }

  /**
   * Returns an iterable containing all combinations of maximumSize, expireAfterAccess/Write,

  static class MyRuntimeException extends RuntimeException {}

  /**
   * Test that the function is invoked only once, even if it throws an exception. Also, test that
   * that function's result is wrapped in an ExecutionException.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testTransformExceptionRemainsMemoized() throws Throwable {

     * threshold has not yet been updated, so there are no atomicity requirements for this with
     * respect to reads.
     *
     * As a guide, all critical volatile reads and writes to the count field are marked in code
     * comments.
     */

    @Weak final LocalCache<K, V> map;

    /** The number of live elements in this segment's region. */
    volatile int count;

  static class MyRuntimeException extends RuntimeException {}

  /**
   * Test that the function is invoked only once, even if it throws an exception. Also, test that
   * that function's result is wrapped in an ExecutionException.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testTransformExceptionRemainsMemoized() throws Throwable {

    // have at least one matching character).
    int threshold = ((percent * length) + 99) / 100;
    StringBuilder builder = new StringBuilder(length);
    for (int n = 0; n < length; n++) {
      builder.append(
          randomCharFrom(list.get(n) >= threshold ? NONMATCHING_CHARS : matchingChars, rand));
    }
    return builder.toString();
  }

  private static char randomCharFrom(String s, Random rand) {

  The rabbit-hole went straight on like a tunnel for some way,
and then dipped suddenly down, so suddenly that Alice had not a
moment to think about stopping herself before she found herself
falling down a very deep well.

  Either the well was very deep, or she fell very slowly, for she
had plenty of time as she went down to look about her and to
wonder what was going to happen next.  First, she tried to look

      ClosingFuture<?> future6,
      ClosingFuture<?>... moreFutures) {
    return whenAllSucceed(
        FluentIterable.of(future1, future2, future3, future4, future5, future6)
            .append(moreFutures));
  }

  private final AtomicReference<State> state = new AtomicReference<>(OPEN);
  private final CloseableList closeables = new CloseableList();
  private final FluentFuture<V> future;