if (input == null) {
            return "null";
        }
        // Remove control characters and limit length
        String sanitized = input.replaceAll("[\\x00-\\x1f]", "");
        if (sanitized.length() > 1000) {
            sanitized = sanitized.substring(0, 997) + "...";
        }
        return sanitized;
    }

    /**
     * Validates that a value is within the specified range
     *

        lenient().when(mockFileHandle.getInitialSize()).thenReturn(100L); // File already has 100 bytes

        when(mockTreeHandle.send(any(Smb2WriteRequest.class), any())).thenReturn(mockWriteResponse);
        when(mockWriteResponse.getCount()).thenReturn(8);

        // Create output stream in append mode - note the append flag sets initial fp to 100

    executorService =
        new ThreadPoolExecutor(
            NUM_THREADS,
            NUM_THREADS,
            Long.MAX_VALUE,
            SECONDS,
            new ArrayBlockingQueue<Runnable>(1000));
    executorService.prestartAllCoreThreads();
    AtomicInteger integer = new AtomicInteger();
    // Execute a bunch of tasks to ensure that our threads are allocated and hot

            // Arrange
            EncryptionNegotiateContext context = new EncryptionNegotiateContext(mockConfig, new int[] { 1, 2 });
            byte[] smallBuffer = new byte[100]; // Make buffer large enough
            byte[] largeBuffer = new byte[1000];

            // Act
            int smallEncodedSize = context.encode(smallBuffer, 0);
            int largeEncodedSize = context.encode(largeBuffer, 500);

                        response.received = false;

                        responseTable.put(nid, response);
                        ensureOpen(timeout + 1000);
                        socket.send(out);

                        if (LogStream.level > 3) {
                            log.println(request);

		return healEntryResult{
			bytes:   sz,
			skipped: true,
		}
	}

	// Collect updates to tracker from concurrent healEntry calls
	results := make(chan healEntryResult, 1000)
	quitting := make(chan struct{})
	defer func() {
		close(results)
		<-quitting
	}()

	go func() {
		for res := range results {
			if res.entryDone {
				tracker.setObject(res.name)

    protected boolean useLease = true;
    /** Lease timeout in milliseconds */
    protected int leaseTimeout = 30000;
    /** Maximum number of concurrent leases */
    protected int maxLeases = 1000;
    /** Preferred lease version (1 or 2) */
    protected int leaseVersion = 2;
    /** Lease break timeout in seconds (per MS-SMB2 spec) */
    protected int leaseBreakTimeout = 60;

        assertFalse(result);
    }

    /**
     * Test thread safety of enum
     */
    public void test_threadSafety() throws Exception {
        final int threadCount = 100;
        final int iterationsPerThread = 1000;
        final Set<Exception> exceptions = new HashSet<>();

        Thread[] threads = new Thread[threadCount];
        for (int i = 0; i < threadCount; i++) {

        SmbFileHandleImpl h1 = new SmbFileHandleImpl(cfg, fidBytes, tree, "//u/one", 0x10, 0x20, 0x30, 0x40, 0L);
        String s1 = h1.toString();
        assertTrue(s1.contains("//u/one"));
        assertTrue(s1.contains("0102"), "Expected hex fileId in string");

        SmbFileHandleImpl h2 = new SmbFileHandleImpl(cfg, 77, tree, "//u/two", -1, -2, -3, -4, 0L);
        String s2 = h2.toString();
        assertTrue(s2.contains("//u/two"));

    assertThrows(IllegalArgumentException.class, () -> ImmutableSet.chooseTableSize(1 << 30));
  }

  @GwtIncompatible // RegularImmutableSet.table not in emulation
  public void testResizeTable() {
    verifyTableSize(100, 2, 4);
    verifyTableSize(100, 5, 8);
    verifyTableSize(100, 33, 64);
    verifyTableSize(60, 60, 128);
    verifyTableSize(120, 60, 256);
    // if the table is only double the necessary size, we don't bother resizing it