Autenticação básica para o Grizzly Server

Eu implementei este exemplo no meu aplicativo:

https-clientserver-grizzly

Aqui está o Server.java desse link:

public class Server { private static HttpServer webServer; public static final URI BASE_URI = getBaseURI(); public static final String CONTENT = "JERSEY HTTPS EXAMPLE\n"; private static URI getBaseURI() { return UriBuilder.fromUri("https://localhost/").port(getPort(4463)).build(); } private static int getPort(int defaultPort) { String port = System.getProperty("jersey.test.port"); if (null != port) { try { return Integer.parseInt(port); } catch (NumberFormatException e) { } } return defaultPort; } protected static void startServer() { // add Jersey resource servlet WebappContext context = new WebappContext("context"); ServletRegistration registration = context.addServlet("ServletContainer", ServletContainer.class); registration.setInitParameter("com.sun.jersey.config.property.packages", "com.sun.jersey.samples.https_grizzly.resource;com.sun.jersey.samples.https_grizzly.auth"); // add security filter (which handles http basic authentication) registration.setInitParameter(ResourceConfig.PROPERTY_CONTAINER_REQUEST_FILTERS, SecurityFilter.class.getName()); // Grizzly ssl configuration SSLContextConfigurator sslContext = new SSLContextConfigurator(); // set up security context sslContext.setKeyStoreFile("./keystore_server"); // contains server keypair sslContext.setKeyStorePass("asdfgh"); sslContext.setTrustStoreFile("./truststore_server"); // contains client certificate sslContext.setTrustStorePass("asdfgh"); try { webServer = GrizzlyServerFactory.createHttpServer( getBaseURI(), null, true, new SSLEngineConfigurator(sslContext).setClientMode(false).setNeedClientAuth(true) ); // start Grizzly embedded server // System.out.println("Jersey app started. Try out " + BASE_URI + "\nHit CTRL + C to stop it..."); context.deploy(webServer); webServer.start(); } catch (Exception ex) { System.out.println(ex.getMessage()); } } protected static void stopServer() { webServer.stop(); } public static void main(String[] args) throws InterruptedException, IOException { startServer(); System.in.read(); } } 

No entanto, decidi ativar apenas a autenticação básica (não é necessária autenticação SSl)

Eu mudei essa parte:

 UriBuilder.fromUri("http://localhost/").port(getPort(4463)).build(); 

e eu comentei a parte dessa linha:

 SSLConfig sslConfig = new SSLConfig(); 

até essa linha:

 System.out.println("Jersey app started. Try out " + BASE_URI + "\nHit CTRL + C to stop it..."); 

No entanto, recebo esse erro:

 com.sun.grizzly.DefaultProtocolChain executeProtocolFilter SEVERE: ProtocolChain exception java.lang.NullPointerException at com.sun.grizzly.filter.SSLReadFilter.newSSLEngine(SSLReadFilter.java:331) at com.sun.grizzly.filter.SSLReadFilter.obtainSSLEngine(SSLReadFilter.java:378) at com.sun.grizzly.filter.SSLReadFilter.execute(SSLReadFilter.java:147) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:136) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:103) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:89) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:67) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) 

Como posso escrever um código que só precisa de autenticação básica no grizzly?