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

    public void test_getSearchEngineHttpAddress_withSpecialCharacters() {
        String testAddress = "https://search-engine.example.com:9200/path?param=value&other=test";
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);