assertNotSame(first, second, "Should create new connection when first is disconnected");
    }

    @Test
    @DisplayName("Should create new connection when force signing differs")
    void testNoReuseWithDifferentSigning() throws Exception {
        // Given: An existing connection without signing enforced
        SmbTransportImpl initial = pool.getSmbTransport(ctx, address, 445, false, false);

        assertSame(testResponseBuffer, negotiationWithNullResponse.getResponseRaw());
    }

    @Test
    @DisplayName("Constructor with null buffers should work")
    void testConstructorWithNullBuffers() {
        // Test that null buffers are handled properly
        SmbNegotiation negotiationWithNullBuffers = new SmbNegotiation(mockRequest, mockResponse, null, null);

            byte[][] buffers = new byte[][] { new byte[8], new byte[8] };

            when(src.toString()).thenReturn("smb://src");
            when(dest.toString()).thenReturn("smb://dest");

            // Act + Assert
            SmbException ex =
                    assertThrows(SmbException.class, () -> SmbCopyUtil.copyFile(src, dest, buffers, 8, new WriterThread(), sh, dh));

    void testMultipleReads() throws SMBProtocolDecodingException {
        // Given
        byte[] buffer1 = new byte[256];
        byte[] buffer2 = new byte[256];

        // Prepare both buffers with valid structure
        SMBUtil.writeInt2(4, buffer1, 0);
        SMBUtil.writeInt2(0, buffer1, 2);
        SMBUtil.writeInt2(4, buffer2, 10);
        SMBUtil.writeInt2(0, buffer2, 12);

        // When

        int writtenMaxDataCount = SMBUtil.readInt2(dst, maxDataCountOffset);
        assertEquals(maxDataCount, writtenMaxDataCount);
    }

    @Test
    @DisplayName("Test all read/write methods with null buffers")
    void testMethodsWithNullBuffers() {
        netShareEnum = new NetShareEnum(realConfig);

        // Write methods return 0 when buffer is null (no NullPointerException thrown)

            auth1.equals(auth2);
        }
    }

    /**
     * Test that password comparison is constant-time by comparing execution times
     * for passwords that differ at different positions.
     */
    @Test
    public void testConstantTimePasswordComparison() throws Exception {
        char[] basePassword = "supersecretpassword123456789".toCharArray();

        this.totalReleased = new AtomicLong();
        
        // Pre-allocate buffer pool
        initializeBufferPool();
    }
    
    private void initializeBufferPool() {
        // Allocate send buffers
        for (int i = 0; i < initialSendBuffers; i++) {
            try {
                ByteBuffer buffer = ByteBuffer.allocateDirect(sendBufferSize);
                RdmaMemoryRegion region = provider.registerMemory(buffer,

            // Encode to different buffers
            int result1 = request.encode(buffer1, 0);
            int result2 = request.encode(buffer2, 50);

            // Both should succeed independently
            assertTrue(result1 > 0);
            assertTrue(result2 > 0);

            // Verify headers in both buffers
            for (int i = 0; i < 8; i++) {

     *             If the underlying constructor represents an abstract class
     * @throws IllegalAccessRuntimeException
     *             If the number of actual and formal parameters differ, if unwrapping of primitive arguments fails,
     *             or if after unwrapping, the parameter values cannot be converted to the corresponding formal parameter types,

        byte[] b = new byte[] { 10, 11, 12 };
        spyTarget.send(b, 1, 2);
        verify(out).writeDirect(b, 1, 2, 1);
    }

    @Test
    @DisplayName("sendrecv with null buffers throws relevant exceptions")
    void testSendRecvInvalidInputs() throws CIFSException {
        // Null out buffer for SMB2 path -> expect NPE when building request
        when(pipe.ensureTreeConnected()).thenReturn(tree);