* string formatting itself should not be a concern.
 *
 * <p>As with any performance concerns, you should consider profiling your code (in a production
 * environment if possible) before spending a lot of effort on tweaking a particular element.
 *
 * <h3>Other types of preconditions</h3>
 *

                httpAddress = "http://localhost:" + port;
                logger.warn("Embedded OpenSearch is running. This configuration is not recommended for production use.");
                break;
            }
        }
        client = createHttpClient(fessConfig, httpAddress);

        if (StringUtil.isNotBlank(httpAddress)) {

 * string formatting itself should not be a concern.
 *
 * <p>As with any performance concerns, you should consider profiling your code (in a production
 * environment if possible) before spending a lot of effort on tweaking a particular element.
 *
 * <h3>Other types of preconditions</h3>
 *