dukescript edited a comment on pull request #2337: URL: https://github.com/apache/netbeans/pull/2337#issuecomment-692671641
It is actually very easy to use > http client libraries with the here-in introduced system. Here is a demo: Start by creating a [new module](https://github.com/dukescript/netbeans/commit/d439aee5d5992fd8e6b35bfc57bcc8c013fd6a50) which is using the JDK11 specific [HttpClient](https://docs.oracle.com/en/java/javase/11/docs/api/java.net.http/java/net/http/HttpClient.html) API: ```java public void demo() throws Exception { HttpClient client = HttpClient.newBuilder() .version(Version.HTTP_1_1) .followRedirects(Redirect.NORMAL) .connectTimeout(Duration.ofSeconds(20)) .proxy(ProxySelector.of(new InetSocketAddress("proxy.example.com", 80))) .authenticator(Authenticator.getDefault()) .build(); HttpRequest request = HttpRequest.newBuilder() .uri(URI.create("https://foo.com/";)) .timeout(Duration.ofMinutes(2)) .header("Content-Type", "application/json") .build(); HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString()); System.out.println(response.statusCode()); System.out.println(response.body()); } ``` Obviously you can't compile this on JDK8. What do you do? You enable the [future API aware compiler](https://github.com/dukescript/netbeans/commit/72e067467dac6f4f651a048a5cc31ba237d37875) and tell it to use JDK11's API (by setting `javac.target=11`). Then everything compiles even on JDK8. The last step is to [use the module](https://github.com/dukescript/netbeans/commit/b325d3c0297def205c23c781a510f848c4dff1ef) when available: ```java UseHttpSpi service = Lookup.getDefault().lookup(UseHttpSpi.class); if (service != null) { service.demo(); } else { throw new IllegalStateException("HttpClient not available on " + System.getProperty("java.version")); } ``` The module with `javac.target=11`is only enabled when running on JDK11+, otherwise it is disabled. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
