import java.net.*;
import java.nio.file.*;
import java.lang.reflect.*;


public class Test implements Runnable{

  public void run(){
    try{
      synchronized(Test.class){
        Test.class.wait(1000);
      }
    }
    catch(IllegalArgumentException |
                         IllegalMonitorStateException | InterruptedException e){
      e.printStackTrace();
    }
  }

  public static void main(String[] args) throws Exception{
    (new Thread(new Test())).start();

    ClassLoader loader = new URLClassLoader(new URL[]{
                     Paths.get(System.getProperty("java.class.path"), "dynload")
                          .toUri()
                          .toURL()});

    Class<?> target = loader.loadClass("DynLoad");
    Method targetMethod = target.getMethod("call");
    Object targetObj = target.newInstance();
    targetMethod.invoke(targetObj);
  }

}