numSuccessfulSetCalls.incrementAndGet();
            }
            awaitUnchecked(barrier);
            return null;
          }
        };
    Callable<@Nullable Void> cancelRunnable =
        () -> {
          if (currentFuture.get().cancel(true)) {
            numSuccessfulSetCalls.incrementAndGet();
          }
          awaitUnchecked(barrier);

            final long counter = this.nonceCounter.incrementAndGet();
            final ByteBuffer buffer = ByteBuffer.wrap(nonce, 12, 4);
            buffer.order(java.nio.ByteOrder.LITTLE_ENDIAN);
            buffer.putInt((int) counter);
        } else {
            // SMB 3.0/3.0.2 CCM: Counter-based approach as per SMB3 specification
            final long counter = this.nonceCounter.incrementAndGet();

            .build(
                new CacheLoader<Integer, Integer>() {
                  @Override
                  public Integer load(Integer from) {
                    return (int) misses.incrementAndGet();
                  }
                });

    // To start, fill up the cache.
    // Each miss both increments the counter and causes the map to grow by one,

    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);

        private final AtomicInteger loadCallCount = new AtomicInteger(0);
        private LoadCallback loadCallback = () -> 0;

        @Override
        public int load() {
            loadCallCount.incrementAndGet();
            return loadCallback.call();
        }

        public void setLoadCallback(LoadCallback callback) {
            this.loadCallback = callback;
        }

        }

        // Only cache if we haven't reached the limit - O(1) check
        if (queueSize.get() < MAX_BUFFERS) {
            if (bufferQueue.offer(buf)) { // O(1) operation
                queueSize.incrementAndGet();
            }
        }
        // If queue is full, let the buffer be garbage collected
    }

    /**
     * Get current cache statistics for monitoring
     * @return formatted statistics string

    }

    /**
     * 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();

            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 {