0x10040000, 0x10041040, 0x00041000, 0x10041000, 0x00041040, 0x00001000, 0x00000040, 0x10040000, 0x10000040, 0x10001000,
            0x00001040, 0x00041000, 0x00040040, 0x10040040, 0x10041000, 0x00001040, 0x00000000, 0x00000000, 0x10040040, 0x10000040,

	FMOVS	F1, 0x1003000(R2)	// FMOVS	F1, 16789504(R2)
	FMOVS	F1, 0x44332211(R2)	// FMOVS	F1, 1144201745(R2)
	FMOVD	F1, 0x1007000(R2)	// FMOVD	F1, 16805888(R2)
	FMOVD	F1, 0x44332211(R2)	// FMOVD	F1, 1144201745(R2)
	FMOVQ	F1, 0x1003000(R2)	// FMOVQ	F1, 16789504(R2)
	FMOVQ	F1, 0x44332211(R2)	// FMOVQ	F1, 1144201745(R2)

	MOVB	0x1000000(R1), R2	// MOVB		16777216(R1), R2
	MOVB	0x44332211(R1), R2	// MOVB		1144201745(R1), R2

    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<>();

        // 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() {

    int WRITE_OWNER = 0x00080000; // 19
    /**
     * Permission to synchronize.
     */
    int SYNCHRONIZE = 0x00100000; // 20
    /**
     * All generic permissions.
     */
    int GENERIC_ALL = 0x10000000; // 28
    /**
     * Generic execute permission.
     */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /**
     * Generic write permission.
     */
    int GENERIC_WRITE = 0x40000000; // 30

    }

    @Test
    @DisplayName("Test buffer configuration getters")
    void testBufferConfigurationGetters() {
        assertEquals(0xFFFF - 512, config.getTransactionBufferSize());
        assertEquals(0x10000, config.getMaximumBufferSize());
        assertEquals(16, config.getBufferCacheSize());
        assertEquals(200, config.getListCount());
        assertEquals(65435, config.getListSize());

     */
    public static final int SMB2_FLAGS_PRIORITY_MASK = 0x00000070;
    /**
     * Flag indicating the operation is a DFS operation.
     */
    public static final int SMB2_FLAGS_DFS_OPERATIONS = 0x10000000;
    /**
     * Flag indicating this is a replay operation.
     */
    public static final int SMB2_FLAGS_REPLAY_OPERATION = 0x20000000;

    private int command;
    private int flags;

    /** Order of name resolution methods to use */
    protected List<ResolverType> resolverOrder;
    /** Maximum buffer size for IO operations */
    protected int maximumBufferSize = 0x10000;
    /** Maximum buffer size for SMB transaction operations */
    protected int transactionBufferSize = 0xFFFF - 512;
    /** Number of buffers to keep in cache */
    protected int bufferCacheSize = 16;

	// Header.FileInfo understands these, but FileInfoHeader will never produce these.
	c_ISDIR  = 040000  // Directory
	c_ISFIFO = 010000  // FIFO
	c_ISREG  = 0100000 // Regular file
	c_ISLNK  = 0120000 // Symbolic link
	c_ISBLK  = 060000  // Block special file
	c_ISCHR  = 020000  // Character special file
	c_ISSOCK = 0140000 // Socket
)

                    }
                }

                if (th.isSMB2()) {
                    final Smb2CreateRequest req = new Smb2CreateRequest(th.getConfig(), fileName);
                    req.setDesiredAccess(0x10000); // delete
                    req.setCreateOptions(Smb2CreateRequest.FILE_DELETE_ON_CLOSE | Smb2CreateRequest.FILE_DIRECTORY_FILE);
                    req.setCreateDisposition(Smb2CreateRequest.FILE_OPEN);