public static void main(String[] args) throws Exception { SSLContext context = SSLContext.getInstance("TLS"); context.init(null, null, null); SSLSocketFactory factory = (SSLSocketFactory) context.getSocketFactory(); SSLSocket socket = (SSLSocket) factory.createSocket(); String[] protocols = socket.getSupportedProtocols(); System.out.println("Supported Protocols: " + protocols.length); for (int i = 0; i < protocols.length; i++) { System.out.println(" " + protocols[i]); } protocols = socket.getEnabledProtocols(); System.out.println("Enabled Protocols: " + protocols.length); for (int i = 0; i < protocols.length; i++) { System.out.println(" " + protocols[i]); } }