beat time when I learn music.'

  `Ah! that accounts for it,' said the Hatter.  `He won't stand
beating.  Now, if you only kept on good terms with him, he'd do
almost anything you liked with the clock.  For instance, suppose
it were nine o'clock in the morning, just time to begin lessons:
you'd only have to whisper a hint to Time, and round goes the
clock in a twinkling!  Half-past one, time for dinner!'

    return new AsyncCallable<T>() {
      @Override
      public ListenableFuture<T> call() {
        return returnValue;
      }
    };
  }

  /** Runnable which can be called a single time, and only after {@link #expectCall} is called. */
  // TODO(cpovirk): top-level class?
  private static class SingleCallListener implements Runnable {

    private boolean expectCall = false;

      this.matcher = SmallCharMatcher.from(tmp, "");
    }
    this.string = checkString(length, percent, config.matchingChars, new Random(), forceSlow, web);
  }

  // Caliper recognizes int-parameter methods beginning with "time"

  @Benchmark
  int trimAndCollapseFromString(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      dummy += matcher.trimAndCollapseFrom(string, '!').length();
    }
    return dummy;
  }

beat time when I learn music.'

  `Ah! that accounts for it,' said the Hatter.  `He won't stand
beating.  Now, if you only kept on good terms with him, he'd do
almost anything you liked with the clock.  For instance, suppose
it were nine o'clock in the morning, just time to begin lessons:
you'd only have to whisper a hint to Time, and round goes the
clock in a twinkling!  Half-past one, time for dinner!'

    volatile long accessTime = Long.MAX_VALUE;

    @Override
    public long getAccessTime() {
      return accessTime;
    }

    @Override
    public void setAccessTime(long time) {
      this.accessTime = time;
    }

    // Guarded By Segment.this
    @Weak ReferenceEntry<K, V> nextAccess = nullEntry();

    @Override
    public ReferenceEntry<K, V> getNextInAccessQueue() {

    return new IdentityHashMap<>();
  }

  /**
   * Computes the difference between two maps. This difference is an immutable snapshot of the state
   * of the maps at the time this method is called. It will never change, even if the maps change at
   * a later time.
   *
   * <p>Since this method uses {@code HashMap} instances internally, the keys of the supplied maps

      this.matcher = SmallCharMatcher.from(tmp, "");
    }
    this.string = checkString(length, percent, config.matchingChars, new Random(), forceSlow, web);
  }

  // Caliper recognizes int-parameter methods beginning with "time"

  @Benchmark
  int trimAndCollapseFromString(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      dummy += matcher.trimAndCollapseFrom(string, '!').length();
    }
    return dummy;
  }