assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Test that LdapOperationException is properly inherited from FessSystemException
        LdapOperationException exception = new LdapOperationException("Test");

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Test that StorageException extends FessSystemException
        StorageException exception = new StorageException("Test");

        assertTrue(exception instanceof FessSystemException);

        String secondCall = exception.getType();

        assertSame(firstCall, secondCall);
        assertEquals(type, firstCall);
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Test that InvalidAccessTokenException is properly inherited from FessSystemException
        String type = "SessionToken";
        String message = "Session expired";

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
        assertNull(exception.getMessageCode());
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Setup
        final String message = "Test inheritance";
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsSsoLoginError(UserMessages.GLOBAL_PROPERTY_KEY);

            assertEquals(expectedMessage, e.getMessage());
            assertEquals(expectedCause, e.getCause());
        }
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Test that SsoProcessException is properly inherited from FessSystemException
        SsoProcessException ssoException = new SsoProcessException("Test SSO error");

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
        assertNull(exception.getMessageCode());
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Setup
        final String message = "Test inheritance hierarchy";