} else {
                System.clearProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
            }
        }
    }

    public void test_getSearchEngineHttpAddress_withLongValue() {
        // Test with a very long URL
        StringBuilder longUrl = new StringBuilder("http://");
        for (int i = 0; i < 1000; i++) {
            longUrl.append("a");
        }