private BufferCache() {
        // Utility class - not instantiable
    }

    private static final int MAX_BUFFERS = Config.getInt("jcifs.smb1.smb.maxBuffers", 16);
    private static final int MAX_BUFFER_SIZE = 0x100000; // 1MB maximum

    // Use concurrent queue for lock-free operations
    private static final java.util.concurrent.ConcurrentLinkedQueue<byte[]> bufferQueue =
            new java.util.concurrent.ConcurrentLinkedQueue<>();

            // Generic rights should be in bits 28-31 (0xF0000000)
            assertTrue(ACE.GENERIC_ALL >= 0x10000000, "GENERIC_ALL should be in generic rights range");
            assertTrue(ACE.GENERIC_EXECUTE >= 0x10000000, "GENERIC_EXECUTE should be in generic rights range");
            assertTrue(ACE.GENERIC_WRITE >= 0x10000000, "GENERIC_WRITE should be in generic rights range");

 *
 * @author Louis Wasserman
 */
@NullUnmarked
public class HashMultisetAddPresentBenchmark {
  private static final int ARRAY_MASK = 0x0ffff;
  private static final int ARRAY_SIZE = 0x10000;
  List<Multiset<Integer>> multisets = new ArrayList<>(0x10000);
  int[] queries = new int[ARRAY_SIZE];

  @BeforeExperiment
  void setUp() {
    Random random = new Random();
    multisets.clear();
    for (int i = 0; i < ARRAY_SIZE; i++) {

        // The validation in getBuffer() ensures size is within bounds (0 < size <= 1MB)
        assertTrue(buffer.length > 0, "Buffer size should be positive");
        assertTrue(buffer.length <= 0x100000, "Buffer size should not exceed 1MB");
    }

    /**
     * Test that releaseBuffer validates buffer before accepting it.
     */
    @Test
    public void testReleaseBufferValidation() {

          +
          // Three byte characters
          THREE_BYTE_ROUNDTRIPPABLE_CHARACTERS;

  // 1,048,576 [chars 0x10000L to 0x10FFFF]
  private static final long FOUR_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x10FFFF - 0x10000L + 1;

  // 289,571,839
  private static final long EXPECTED_FOUR_BYTE_ROUNDTRIPPABLE_COUNT =
      // All one byte characters

     */
    int NTLMSSP_NEGOTIATE_TARGET_INFO = 0x00800000;

    /**
     * Indicates that the NTLM version is included in the message.
     */
    int NTLMSSP_NEGOTIATE_VERSION = 0x2000000;

    /**
     * Indicates that 128-bit encryption is supported.
     */
    int NTLMSSP_NEGOTIATE_128 = 0x20000000;

    /**
     * Request explicit key exchange
     */

        assertEquals(0x00040000, SmbConstants.WRITE_DAC);
        assertEquals(0x00080000, SmbConstants.WRITE_OWNER);
        assertEquals(0x00100000, SmbConstants.SYNCHRONIZE);
        assertEquals(0x10000000, SmbConstants.GENERIC_ALL);
        assertEquals(0x20000000, SmbConstants.GENERIC_EXECUTE);
        assertEquals(0x40000000, SmbConstants.GENERIC_WRITE);
        assertEquals(0x80000000, SmbConstants.GENERIC_READ);
    }

    /**
     * Permission to synchronize with the file
     */
    int SYNCHRONIZE = 0x00100000; // 20
    /**
     * Generic all permissions
     */
    int GENERIC_ALL = 0x10000000; // 28
    /**
     * Generic execute permission
     */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /**
     * Generic write permission
     */
    int GENERIC_WRITE = 0x40000000; // 30
    /**

    /** Permission to synchronize with the file */
    public static final int SYNCHRONIZE = 0x00100000; // 20
    /** Generic all permissions */
    public static final int GENERIC_ALL = 0x10000000; // 28
    /** Generic execute permission */
    public static final int GENERIC_EXECUTE = 0x20000000; // 29
    /** Generic write permission */
    public static final int GENERIC_WRITE = 0x40000000; // 30

        assertEquals(0x10000, Smb2CreateRequest.FILE_OPEN_REQUIRING_OPLOCK);
        assertEquals(0x20000, Smb2CreateRequest.FILE_DISALLOW_EXCLUSIVE);
        assertEquals(0x100000, Smb2CreateRequest.FILE_RESERVE_OPFILTER);
        assertEquals(0x200000, Smb2CreateRequest.FILE_OPEN_REPARSE_POINT);
        assertEquals(0x400000, Smb2CreateRequest.FILE_NOP_RECALL);