About different ClassLoader in Applet

Question

I have made an application which can reload updated class dynamically..
for reloading class dynamically from file system, I can't help using URLClassLoader which is different from original ClassLoader.
When the application works in local JVM, the diffrenent class loaders didn't make any problem .. but, when the application works as Applet in web, class loaders make some problems....
for example,
Class A {
protected String name;
public String getName(Class B) { return name; }
Class B {
URLClassLoader classLoader;
public void showName(){
A aClass = classLoader.loadClass("A");
Method method = aClass.getClass().getMethod("getName", this.getClass()); ----> 1
String name = (String)Method.invoke(aClass, this);
the part of 1 generates error :: NoMethodError.
that is the reasion that Class A is loaded from default system class loader,
and Class B is loaded dynamically from URLClassLoader.
but, above code works well in local JVM, but when I execute as Applet in Web,
it generates NoMethodError...
Is there any persion telling me the answer?

Answer 1

This is just a guess, but maybe it's a security issue in the browser ?
Try changing the settings in IE: tools, internetoptions, security, custom level, java permissions: custom
Then, enable 'run unsigned content' and enable 'access to all networkaddresses'