// no entry
    assertEquals(0, segment.count);
    assertNull(segment.remove(key, hash));
    assertEquals(0, segment.count);

    // same key
    table.set(index, entry);
    segment.count++;
    assertEquals(1, segment.count);
    assertSame(oldValue, segment.get(key, hash));
    assertSame(oldValue, segment.remove(key, hash));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));

    // no entry
    assertEquals(0, segment.count);
    assertNull(segment.remove(key, hash));
    assertEquals(0, segment.count);

    // same key
    table.set(index, entry);
    segment.count++;
    assertEquals(1, segment.count);
    assertSame(oldValue, segment.get(key, hash));
    assertSame(oldValue, segment.remove(key, hash));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));

      for (Segment<K, V> segment : segments) {
        if (segment.count != 0) {
          return false;
        }
        sum -= segment.modCount;
      }
      return sum == 0L;
    }
    return true;
  }

  long longSize() {
    Segment<K, V>[] segments = this.segments;
    long sum = 0;
    for (Segment<K, V> segment : segments) {
      sum += segment.count;
    }

      for (Segment<K, V> segment : segments) {
        if (segment.count != 0) {
          return false;
        }
        sum -= segment.modCount;
      }
      return sum == 0L;
    }
    return true;
  }

  long longSize() {
    Segment<K, V>[] segments = this.segments;
    long sum = 0;
    for (Segment<K, V> segment : segments) {

like a serpent.  She had just succeeded in curving it down into a
graceful zigzag, and was going to dive in among the leaves, which
she found to be nothing but the tops of the trees under which she
had been wandering, when a sharp hiss made her draw back in a
hurry:  a large pigeon had flown into her face, and was beating
her violently with its wings.

  `Serpent!' screamed the Pigeon.

like a serpent.  She had just succeeded in curving it down into a
graceful zigzag, and was going to dive in among the leaves, which
she found to be nothing but the tops of the trees under which she
had been wandering, when a sharp hiss made her draw back in a
hurry:  a large pigeon had flown into her face, and was beating
her violently with its wings.

  `Serpent!' screamed the Pigeon.