"Ping" an url so one can determine wether ti's CA is in the JRE's truststore

URLConnectionReader.java

// Based on java example: http://docs.oracle.com/javase/tutorial/networking/urls/readingWriting.html
// save as: URLConnectionReader.java
// compile using JDK: javac URLConnectionReader.java
// run: java URLConnectionReader
// good path: returns HTML
// bad path: throws an exception

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

public class URLConnectionReader {
    public static void main(String[] args) throws Exception {
        URL oracle = new URL(args[0]);
        URLConnection yc = oracle.openConnection();
        BufferedReader in = new BufferedReader(new InputStreamReader(
                yc.getInputStream()));
        String inputLine;
        while ((inputLine = in.readLine()) != null)
            System.out.println(inputLine);
        in.close();
    }
}