Re: Dynamic method invocation on Proxy object?

On 08/02/12 08:19, Sebastian wrote:


Are you sure? I get $Proxy0 from this:

import java.lang.reflect.*;

public class GetProxyClass {
     public static void main(String[] args) throws Exception {
         ClassLoader classLoader =
             ClassLoader.getSystemClassLoader();
         InvocationHandler behaviour = new InvocationHandler() {
                 public Object invoke(Object proxy, Method method,
                                      Object[] args) {
                     System.out.println("Called " + method);
                     return null;
                 }
             };
         Object proxy =
             Proxy.newProxyInstance(classLoader,
                                    new Class<?>[] { Runnable.class },
                                    behaviour);
         Class<?> proxyClass = proxy.getClass();
         System.out.println("Proxy class is: " + proxyClass);

         Method m = proxyClass.getMethod("run", new Class<?>[0]);
         ((Runnable) proxy).run();
         m.invoke(proxy);
     }
}

Output:

Proxy class is: class $Proxy0
Called public abstract void java.lang.Runnable.run()
Called public abstract void java.lang.Runnable.run()

It also demonstrates a method on the implemented interface being looked
up and invoked.

--
ss at comp dot lancs dot ac dot uk