How to connect using tls ?

[ghostidentity]

Hi guys,

I'm having trouble connecting java client to server. The code below is C# code that i Used to connect, but now im trying to connect using java but no luck.

```
var opts = new NatsOpts
	{
		Url = _url,
		Name = uniqueid,
		Headers = true,

		ConnectTimeout = TimeSpan.FromSeconds(5),
		ReconnectWaitMin = TimeSpan.FromSeconds(2),
		MaxReconnectRetry = 60,

		AuthOpts = new NatsAuthOpts
		{
			Jwt = jwt,
			Seed = seed,
		},
		TlsOpts = new NatsTlsOpts
		{
			InsecureSkipVerify = true,
			Mode = TlsMode.Implicit,
			ConfigureClientAuthentication = options =>
			{
				options.EnabledSslProtocols = SslProtocols.Tls13;
				return new ValueTask();
			}
		},

	};

	_connection = new NatsConnection(opts);

    ```

Whats the equivalent java code, below code not working, it throws -> Connection refused: getsockopt?

            String SEED = doc.getElementsByTagName("seed").item(0).getTextContent();
            String JWT = doc.getElementsByTagName("jwt").item(0).getTextContent();

            SSLContext sslContext = SSLContext.getInstance("TLSv1.3");

            // Create TrustManager that trusts all certificates
            TrustManager[] trustAllCerts = new TrustManager[] { 
                new X509TrustManager() {
                    public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                        return null;
                    }

                    public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
                    }

                    public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
                    }
                } 
            };

            sslContext.init(null, trustAllCerts, new SecureRandom());

            // Create AuthHandler using Nats.credentials
            AuthHandler authHandler = Nats.credentials(JWT, SEED);

            // Build connection options
            Options.Builder builder = new Options.Builder()
                .server(Options.DEFAULT_URL)
                .connectionName("uniqueId")
                .connectionTimeout(Duration.ofSeconds(5))
                .reconnectWait(Duration.ofSeconds(2))
                .maxReconnects(60)
                .sslContext(sslContext)
                .tlsFirst()
                .tlsAlgorithm("TLSv1.3")
                .noEcho()
                .authHandler(authHandler);

            // Connect to NATS server
            Connection nc = Nats.connect(builder.build());
            System.out.println("Connected to NATS server with TLS handshake first");
            nc.getStatus();

[ghostidentity]

I figured it out, i was using incorrect method -> AuthHandler authHandler = Nats.credentials(JWT, SEED); as looks for file.

[scottf]

Might be a place for us to improve documentation. Was the api doc unclear? Was the readme not helpful? If you like, you are welcome to offer improvements to either via a PR. Thanks for working through this.