Arrays.fill(data, (byte)0x42);
    
    long start = System.currentTimeMillis();
    
    try (OutputStream os = file.getOutputStream()) {
        os.write(data);
    }
    
    long writeTime = System.currentTimeMillis() - start;
    
    // Read back
    start = System.currentTimeMillis();
    byte[] readData = new byte[data.length];
    

            }
            final AtomicLong lastTime = lastTimes.putIfAbsent(host, new AtomicLong(SystemUtil.currentTimeMillis()));
            if (lastTime == null) {
                return;
            }
            synchronized (lastTime) {
                while (true) {
                    final long currentTime = SystemUtil.currentTimeMillis();
                    final long delayTime = lastTime.get() + delayMillisBeforeProcessing - currentTime;

        // Max write size
        SMBUtil.writeInt4(1048576, buffer, offset + 36);

        // System time
        SMBUtil.writeTime(System.currentTimeMillis(), buffer, offset + 40);

        // Server start time
        SMBUtil.writeTime(System.currentTimeMillis() - 3600000, buffer, offset + 48);

        // Security buffer offset and length
        SMBUtil.writeInt2(128, buffer, offset + 56); // Offset

        long serverTimeZoneOffset = 3600000L; // 1 hour
        response = new SmbComQueryInformationResponse(mockConfig, serverTimeZoneOffset);

        // Set a test time using reflection
        long testTime = System.currentTimeMillis();
        setFieldValue(response, "lastWriteTime", testTime);

        // All time methods should return the same converted time
        long expectedTime = testTime + serverTimeZoneOffset;

        // Verify that performance optimizations are working
        long startTime = System.currentTimeMillis();
        try {
            dataIndexHelper.crawl("performance-test");
        } catch (Exception e) {
            // Expected
        }
        long duration = System.currentTimeMillis() - startTime;

        // Test should complete in under 1 second (much less than the original 25+ seconds)

        String childName = "file1.txt";
        long size = 1024L;
        long lastModified = System.currentTimeMillis();
        boolean isDirectory = false;
        long attributes = 0x20; // FILE_ATTRIBUTE_ARCHIVE
        long creationTime = System.currentTimeMillis() - 10000;
        long lastAccessTime = System.currentTimeMillis() - 5000;

        long expiration;
        HashMap map;

        CacheEntry(long ttl) {
            if (ttl == 0) {
                ttl = Dfs.TTL;
            }
            expiration = System.currentTimeMillis() + ttl * 1000L;
            map = new HashMap();
        }
    }

    static LogStream log = LogStream.getInstance();

    }

    /**
     * Returns the current time in milliseconds.
     *
     * @return the current time in milliseconds
     */
    public static long currentTimeMillis() {
        // TODO provider
        return System.currentTimeMillis();
    }

    public static final int WITNESS_RESOURCE_STATE_UNAVAILABLE = 0x000000FF;

    /**
     * Creates a new empty witness notification.
     */
    public WitnessNotification() {
        this.timestamp = System.currentTimeMillis();
        this.newIPAddresses = new ArrayList<>();
        this.oldIPAddresses = new ArrayList<>();
        this.flags = WITNESS_RESOURCE_STATE_UNKNOWN;
    }

    /**
     * Creates a new witness notification.

    private final AtomicInteger globalAttemptsInCurrentWindow = new AtomicInteger(0);
    private final AtomicLong currentWindowStart = new AtomicLong(System.currentTimeMillis());

    // Cleanup scheduler
    private final ScheduledExecutorService cleanupScheduler;
    private final AtomicBoolean closed = new AtomicBoolean(false);

    // Statistics