Java "one-liner" for testing SSL connections (truststores, client auth, etc)

UrlConnectTest.java

import java.io.*;
import java.net.*;

/**
 * Open URL passed as the first command-line argument and read the first line from it
 *
 * Example usage for testing client auth:
 * java -Djavax.net.ssl.trustStore=/path/to/truststore.jks \
 *      -Djavax.net.ssl.trustStorePassword=myword \
 *      -Djavax.net.ssl.keyStore=/path/to/keystore.jks \
 *      -Djavax.net.ssl.keyStorePassword=myword \
 *      UrlConnectTest https://my.url:port
 */
public class UrlConnectTest {
  public static void main (String args[]) throws IOException, MalformedURLException {
    InputStream s = new URL(args[0]).openStream();
    BufferedReader r = new BufferedReader(new InputStreamReader(s));
    System.out.println(r.readLine());
  }
}