import java.net.*; public class TestParent { public static void main (String[] args) { URLClassLoader ucl = (URLClassLoader) ClassLoader.getSystemClassLoader(); URL urls[] = ucl.getURLs (); MyLoader parent = new MyLoader (urls); MyLoader t1 = new MyLoader (urls, parent); MyLoader t2 = new MyLoader (urls, parent); Class c1, c2; try { c1 = t1.loadClass ("dummy"); c2 = t2.loadClass ("dummy"); } catch (Exception e) { e.printStackTrace (); } } }