try {
            var f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            return f.get(target);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static void setField(Object target, String name, Object value) {
        try {
            var f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);

    @DisplayName("Should return initial credits from getCredit")
    void testGetInitialCredits() throws Exception {
        // Given - set credit using reflection
        Field creditField = ServerMessageBlock2.class.getDeclaredField("credit");
        creditField.setAccessible(true);
        creditField.set(response, 128);

        // When
        int credits = response.getInitialCredits();

        // Then

    }

    @Test
    void testGetResponseLength() throws Exception {
        // Use reflection to set dataCount
        Field dataCountField = SmbComTransactionResponse.class.getDeclaredField("dataCount");
        dataCountField.setAccessible(true);
        dataCountField.setInt(response, 42);

        assertEquals(42, response.getResponseLength());
    }

    @Test

            // Then
            assertNotNull(cancel);
            assertEquals(testMid, cancel.getMid());

            // Verify command is set correctly
            Field commandField = ServerMessageBlock.class.getDeclaredField("command");
            commandField.setAccessible(true);
            assertEquals(SMB_COM_NT_CANCEL, commandField.getByte(cancel));
        }

        @ParameterizedTest

        // Arrange
        SecurityBlob blob = new SecurityBlob(new byte[] { 1, 2, 3 });

        // Force internal field to null via reflection to exercise defensive branch
        Field field = SecurityBlob.class.getDeclaredField("b");
        field.setAccessible(true);
        field.set(blob, null);

        // Act & Assert
        assertEquals(0, blob.length(), "length() should return 0 when internal array is null");
    }

    private Field findField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
        Class<?> current = clazz;
        while (current != null) {
            try {
                return current.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                current = current.getSuperclass();
            }
        }
        throw new NoSuchFieldException(fieldName);
    }

        Field field = obj.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(obj, value);
    }

    /**
     * Helper method to get private field value using reflection
     */
    private Object getPrivateField(Object obj, String fieldName) throws Exception {
        Field field = obj.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);

        field.set(target, value);
    }

    private Field findField(Class<?> clazz, String fieldName) {
        while (clazz != null) {
            try {
                return clazz.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                clazz = clazz.getSuperclass();
            }
        }
        return null;
    }

        // A more robust solution might involve reflection or modifying the servlet for testability.
        try {
            java.lang.reflect.Field transportContextField = NtlmServlet.class.getDeclaredField("transportContext");
            transportContextField.setAccessible(true);
            transportContextField.set(ntlmServlet, cifsContext);
        } catch (Exception e) {

    }

    // Helper to set private fields for targeted edge cases
    private static void setField(Object target, String name, Object value) {
        try {
            Field f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            f.set(target, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Test