System.out.println(con);
System.out.println(con.getContentType());
InputStream stream = con.getInputStream();
JarInputStream jis = new JarInputStream(stream);
System.out.println(jis);
System.out.println(jis.available());
System.out.println(jis.getNextJarEntry());
System.out.println(jis.getNextJarEntry());
System.out.println(jis.getNextJarEntry());
System.out.println(jis.available());
System.out.println(jis.getNextJarEntry());