// Verify stack trace is available
        assertNotNull(exception.getStackTrace());
        assertTrue(exception.getStackTrace().length > 0);
    }

    public void test_differentMessageCodes() {
        // Setup - test with different message codes
        final String message = "Test message";

        // Verify stack trace is captured
        assertNotNull(exception.getStackTrace());
        assertTrue(exception.getStackTrace().length > 0);
    }

    public void test_differentMessageCodes() {
        // Setup - test with different message codes
        final String message = "Query validation error";
        final VaMessenger<FessMessages> unknownErrorCode =