// Messages should remain as provided
        assertEquals(message1, exception1.getMessage());
        assertEquals(message2, exception2.getMessage());

        // Messages should not be affected by cause
        assertFalse(exception1.getMessage().equals(exception2.getMessage()));
    }

    public void test_longMessage() {
        // Test with very long message

        assertTrue(exception instanceof FessSystemException);
    }

    public void test_constructorWithNullMessage() {
        // Test constructor with null message
        SearchQueryException exception = new SearchQueryException((String) null);

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

        ThemeException exception = new ThemeException(message, cause);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertEquals("Config file not found", exception.getCause().getMessage());
    }

    public void test_constructorWithNullMessage() {
        // Test constructor with null message

        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertEquals("Underlying error", exception.getCause().getMessage());
    }

    public void test_constructor_withNullMessage() {
        // Test constructor with null message
        ScriptEngineException exception = new ScriptEngineException(null);

        assertNull(exception.getMessage());

        // Verify the deserialized exception
        assertEquals(originalException.getMessage(), deserializedException.getMessage());
        assertNotNull(deserializedException.getCause());
        assertEquals(originalException.getCause().getMessage(), deserializedException.getCause().getMessage());
    }

    public void test_getMessage() {
        // Test getMessage() method
        String message = "Custom SSO error message";

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

    public void test_constructor_withNullMessage() {
        // Test constructor with null message
        SearchEngineClientException exception = new SearchEngineClientException(null);

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

        // Test that getMessage returns the same value consistently
        String message = "Consistent message";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        String firstCall = exception.getMessage();
        String secondCall = exception.getMessage();
        String thirdCall = exception.getMessage();

        assertEquals(firstCall, secondCall);

        LdapConfigurationException exception3 = new LdapConfigurationException("Error 3");

        assertEquals("Error 1", exception1.getMessage());
        assertEquals("Error 2", exception2.getMessage());
        assertEquals("Error 3", exception3.getMessage());

        // Ensure they are different instances
        assertNotSame(exception1, exception2);
        assertNotSame(exception2, exception3);

    }

    public void test_getMessage_consistency() {
        // Test that getMessage returns consistent results
        String message = "Consistent message";
        JobNotFoundException exception = new JobNotFoundException(message);

        assertEquals(message, exception.getMessage());
        assertEquals(message, exception.getMessage()); // Call twice to verify consistency

        assertEquals("Top level error", exception.getMessage());
        assertEquals(middleCause, exception.getCause());
        assertEquals("Middle cause", exception.getCause().getMessage());
        assertEquals(rootCause, exception.getCause().getCause());
        assertEquals("Root cause", exception.getCause().getCause().getMessage());
    }

    public void test_throwAndCatch() {