counters.add(listener);
        assertEquals(expected.count(listener), counters.count(listener));
      }

      @Override
      public String toString() {
        return "incrementing";
      }
    };
  }

  private static <T> ImmutableMultiset<T> multiset(T value, int count) {
    return multiset(ImmutableMap.of(value, count));
  }

        counters.add(listener);
        assertEquals(expected.count(listener), counters.count(listener));
      }

      @Override
      public String toString() {
        return "incrementing";
      }
    };
  }

  private static <T> ImmutableMultiset<T> multiset(T value, int count) {
    return multiset(ImmutableMap.of(value, count));
  }

    byte[] addr = address.getAddress();
    int i = addr.length - 1;
    while (i >= 0 && addr[i] == (byte) 0xff) {
      addr[i] = 0;
      i--;
    }

    checkArgument(i >= 0, "Incrementing %s would wrap.", address);

    addr[i]++;
    return bytesToInetAddress(addr, null);
  }

  /**
   * Returns true if the InetAddress is either 255.255.255.255 for IPv4 or