Checks that the Java runtime is able to connect to and communicate with an SSL server. Useful for checking whether the security key chain contains valid keys.

SSLPoke.java

import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.io.*;

/** Establish a SSL connection to a host and port, writes a byte and
 * prints the response. See
 * http://confluence.atlassian.com/display/JIRA/Connecting+to+SSL+services
 */
public class SSLPoke {
  public static void main(String[] args) {
    if (args.length != 2) {
      System.out.println("Usage: "+SSLPoke.class.getName()+" <host> <port>");
      System.exit(1);
    }
    try {
      SSLSocketFactory sslsocketfactory = (SSLSocketFactory) SSLSocketFactory.getDefault();
      SSLSocket sslsocket = (SSLSocket) sslsocketfactory.createSocket(args[0], Integer.parseInt(args[1]));

      InputStream in = sslsocket.getInputStream();
      OutputStream out = sslsocket.getOutputStream();

      // Write a test byte to get a reaction :)
      out.write(1);

      while (in.available() > 0) {
        System.out.print(in.read());
      }
      System.out.println("Successfully connected");

    } catch (Exception exception) {
      exception.printStackTrace();
    }
  }
}