void testDecodeException() throws SMBProtocolDecodingException {
            byte[] buffer = new byte[100];
            when(mockFileSystemInfo.decode(any(byte[].class), anyInt(), anyInt()))
                    .thenThrow(new SMBProtocolDecodingException("Test error"));

            assertThrows(SMBProtocolDecodingException.class, () -> {
                mockFileSystemInfo.decode(buffer, 0, 100);
            });
        }
    }

        try (MockedStatic<KerberosEncData> mockedEncData = Mockito.mockStatic(KerberosEncData.class)) {
            mockedEncData.when(() -> KerberosEncData.decrypt(ENCRYPTED_DATA, kerberosKey, ENCRYPTION_TYPE))
                    .thenThrow(new GeneralSecurityException("Decryption error"));

            PACDecodingException e = assertThrows(PACDecodingException.class, () -> new KerberosTicket(token, (byte) 0, keys));

    @Test
    void testWatchThrowsCIFSException() throws CIFSException {
        // Setup mock behavior
        CIFSException expectedException = new CIFSException("Watch operation failed");
        when(watchHandle.watch()).thenThrow(expectedException);

        // Execute and verify
        CIFSException thrown = assertThrows(CIFSException.class, () -> {
            watchHandle.watch();
        });

            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();
            CIFSException exception = new CIFSException("Test exception");
            when(mockSmbPipeHandleInternal.getSessionKey()).thenThrow(exception);
            assertThrows(CIFSException.class, handle::getSessionKey);
        }
    }

    @Nested
    @DisplayName("Send/Receive Fragment Tests")
    class SendReceiveFragmentTests {

    void testDecodeThrowsException() throws SMBProtocolDecodingException {
        // Given
        byte[] buffer = new byte[10];
        int bufferIndex = 0;

        when(messageBlock.decode(buffer, bufferIndex)).thenThrow(new SMBProtocolDecodingException("Invalid buffer"));

        // When & Then
        assertThrows(SMBProtocolDecodingException.class, () -> messageBlock.decode(buffer, bufferIndex));
    }

    @Test

        when(handle.getFileId()).thenReturn(new byte[16]);
        when(tree.send(any(CommonServerMessageBlockRequest.class), any(), any(), any()))
                .thenThrow(new SmbException(0xC0000120, (Throwable) null));
        SmbWatchHandleImpl sut = new SmbWatchHandleImpl(handle, 0, false);

        List<FileNotifyInformation> result = sut.watch();

        void readSingleByteEOF() throws Exception {
            // Arrange SMB2 EOF via NT status code mapping in SmbFileInputStream
            when(mockTree.send(any(Request.class), any(RequestParam.class))).thenThrow(new SmbException(0xC0000011, false)); // STATUS_END_OF_FILE

            SmbFileInputStream in = newStream();
            int v = in.read();
            assertEquals(-1, v);
        }
    }

    @Nested

    void testExceptionHandling() {
        // Given
        RuntimeException testException = new RuntimeException("Test exception");
        when(mockDelegate.getResponseTimeout()).thenThrow(testException);

        // When & Then
        RuntimeException thrownException = assertThrows(RuntimeException.class, () -> {
            delegatingConfig.getResponseTimeout();
        });

    void nameFilterThrowsIsHandled() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        when(nameFilter.accept(parent, "bad")).thenThrow(new CIFSException("bad name"));
        when(nameFilter.accept(parent, "good")).thenReturn(true);

        FileEntry initial = entry("first");
        FileEntry[] page1 = new FileEntry[] { entry("bad"), entry("good") };

            CreateContextResponse response = mock(CreateContextResponse.class);
            byte[] buffer = new byte[100];
            when(response.decode(any(byte[].class), anyInt(), anyInt())).thenThrow(new SMBProtocolDecodingException("Test error"));

            assertThrows(SMBProtocolDecodingException.class, () -> response.decode(buffer, 0, 10));
        }
    }

    @Nested