CloseableHttpClient httpClient = HttpClients.createDefault(); PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(); httpClient = HttpClients.custom().setConnectionManager(connManager).build(); HttpGet httpGet = new HttpGet("https://example.com"); CloseableHttpResponse response = httpClient.execute(httpGet); response.close(); httpClient.close(); StringBuilder sb = new StringBuilder(); String result = sb.toString();