assertThrows(IllegalArgumentException.class, () -> multiset.add(KEY, COUNT_TO_ADD));
  }

  /**
   * Simulate some of the races that can happen on add. We can't easily simulate the race that
   * happens when an {@link AtomicInteger#compareAndSet} fails, but we can simulate the case where
   * the putIfAbsent returns a non-null value, and the case where the replace() of an observed zero
   * fails.

	o = append(o, 0x82, 0xa5, 0x43, 0x6f, 0x75, 0x6e, 0x74)
	o = msgp.AppendFloat64(o, z.Avg.Count)
	// string "Bytes"
	o = append(o, 0xa5, 0x42, 0x79, 0x74, 0x65, 0x73)
	o = msgp.AppendFloat64(o, z.Avg.Bytes)
	// string "pq"
	o = append(o, 0xa2, 0x70, 0x71)
	// map header, size 2
	// string "Count"
	o = append(o, 0x82, 0xa5, 0x43, 0x6f, 0x75, 0x6e, 0x74)
	o = msgp.AppendFloat64(o, z.Max.Count)
	// string "Bytes"

    // TODO(cgdecker): Add CharSource.slice?
    StringBuilder builder = new StringBuilder();
    Reader reader = concatenated.openStream(); // no need to worry about closing
    for (int i = 0; i < 8; i++) {
      builder.append((char) reader.read());
    }
    assertThat(builder.toString()).isEqualTo(expected);
  }

  static final CharSource BROKEN_READ_SOURCE = new TestCharSource("ABC", READ_THROWS);

)

// TestMain initializes the testing framework
func TestMain(m *testing.M) {
	startLockServers()

	// Initialize locker clients for dsync.
	var clnts []NetLocker
	for i := range nodes {
		clnts = append(clnts, newClient(nodes[i].URL))
	}

	ds = &Dsync{
		GetLockers: func() ([]NetLocker, string) { return clnts, uuid.New().String() },
		Timeouts: Timeouts{
			Acquire:         testDrwMutexAcquireTimeout,

            case TRANSFER_STARTED:
                sb.append("STARTED");
                break;
            default:
                sb.append(this.getEventType());
                break;
        }

        sb.append('|');
        sb.append(this.getLocalFile()).append('|');
        sb.append(']');

        return sb.toString();
    }

    @Override
    public int hashCode() {

        if (isUpdated()) {
            buf.append(quoteEscape(newToken));
            buf.append(',');
            buf.append(quoteEscape(newSegmentation));
            buf.append(',');
            buf.append(quoteEscape(newReading));
            buf.append(',');
            buf.append(quoteEscape(newPos));
        } else {
            buf.append(quoteEscape(token));
            buf.append(',');

                return tempBuf.toString();
            }).collect(Collectors.joining(","));
            buf.append(hotThreads).append(',');
        } catch (final Exception e) {
            appendException(buf, e).append(',');
        }

        appendTimestamp(buf);
        buf.append('}');

        if (logger.isInfoEnabled()) {
            logger.info(buf.toString());
        }
    }

	o = msgp.Require(b, z.Msgsize())
	// map header, size 6
	// string "APIVersion"
	o = append(o, 0x86, 0xaa, 0x41, 0x50, 0x49, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e)
	o = msgp.AppendString(o, z.APIVersion)
	// string "Bucket"
	o = append(o, 0xa6, 0x42, 0x75, 0x63, 0x6b, 0x65, 0x74)
	o = msgp.AppendString(o, z.Bucket)
	// string "Prefix"
	o = append(o, 0xa6, 0x50, 0x72, 0x65, 0x66, 0x69, 0x78)
	o, err = z.Prefix.MarshalMsg(o)

                .append("],\"graph\": {\"rootNodeId\": \"")
                .append(projectName)
                .append("@0.0.0")
                .append("\",\"nodes\": [")
                .append("{\"nodeId\": \"")
                .append(projectName)
                .append("@0.0.0")
                .append("\",\"pkgId\": \"")
                .append(projectName)
                .append("@0.0.0")

        StringBuilder sb = new StringBuilder();
        sb.append("SmbOperationException{");
        sb.append("errorCode=").append(errorCode);
        sb.append(", category=").append(errorCode.getCategory());
        sb.append(", retryable=").append(isRetryable());
        sb.append(", attempt=").append(attemptNumber);
        sb.append(", operation='").append(operationName).append('\'');

        if (ntStatus != 0) {