Multiset<String> multiset =
        new NoRemoveMultiset<String>() {
          @Override
          public int add(String element, int occurrences) {
            addCalls.incrementAndGet();
            return super.add(element, occurrences);
          }
        };
    ImmutableMultiset<String> adds =
        new ImmutableMultiset.Builder<String>().addCopies("x", 10).build();
    multiset.addAll(adds);

    }

    /**
     * Gets the next sequence number for this registration.
     *
     * @return the next sequence number
     */
    public long getNextSequenceNumber() {
        return sequenceNumber.incrementAndGet();
    }

    /**
     * Updates the heartbeat timestamp to current time and resets failure count.
     */
    public void updateHeartbeat() {
        this.lastHeartbeat = System.currentTimeMillis();

                        String nonceStr = Arrays.toString(nonce);
                        if (allNonces.putIfAbsent(nonceStr, true) != null) {
                            collisions.incrementAndGet();
                        }
                    }
                } finally {
                    latch.countDown();
                }
            });
        }

        // Then

            k -> new ChannelStatistics());
            
        stats.operations.incrementAndGet();
        stats.latencyTotal.addAndGet(latency);
        
        if (success) {
            stats.bytesReceived.addAndGet(bytes);
        } else {
            stats.errors.incrementAndGet();
        }
    }
    
    public double getAggregatedThroughput() {

     * @return the registration ID
     */
    public String registerWitness(String shareName, String serverAddress, int flags) {
        String registrationId = "MOCK-REG-" + registrationCounter.incrementAndGet();
        MockRegistration registration = new MockRegistration(registrationId, shareName, serverAddress, flags);
        registrations.put(registrationId, registration);

                        buffer[0] = (byte) i;

                        // Release buffer
                        BufferCache.releaseBuffer(buffer);
                        successCount.incrementAndGet();
                    }
                } catch (Exception e) {
                    synchronized (exceptions) {
                        exceptions.add(e);
                    }
                } finally {

      val request =
        readRequest(
          socket = socket,
          connectionIndex = connectionIndex,
          exchangeIndex = nextExchangeIndex++,
        )
      atomicRequestCount.incrementAndGet()
      requestQueue.add(request)

      if (request.failure != null) {
        return false // Nothing to respond to.
      }

      val response = dispatcher.dispatch(request)

      try {

    }

    /**
     * @param track
     * @return tree with increased usage count
     */
    public SmbTreeImpl acquire(final boolean track) {
        final long usage = this.usageCount.incrementAndGet();
        if (log.isTraceEnabled()) {
            log.trace("Acquire tree " + usage + " " + this);
        }

        if (track && this.traceResource) {
            synchronized (this.acquires) {

        ThumbnailManager mockThumbnailManager = new ThumbnailManager() {
            @Override
            public int generate(ExecutorService executorService, boolean cleanup) {
                counter.incrementAndGet();
                // Return 0 to exit the loop
                return 0;
            }
        };
        ComponentUtil.register(mockThumbnailManager, "thumbnailManager");
    }

        if (counter == null) {
            counter = new AtomicLong(0);
            requestCounters.put(ip, counter);
        }

        final long count = counter.incrementAndGet();

        if (logger.isDebugEnabled()) {
            logger.debug("Request count: ip={}, count={}, max={}", ip, count, maxRequests);
        }

        if (count > maxRequests) {