Thread: Method injection

I am invoking a method from a class I obtained by using a URLClassLoader. Which is giving me the following exception.

java.lang.reflect.InvocationTargetException

The line that gives this exception is

public static Object invoked(String aClass, String aMethod, Class[] params, Object[] args) throws Exception {   Method m = mine.getDeclaredMethod(aMethod, params); Object i = mine.newInstance(); Object r = m.invoke(i, args);//this line :( return r; }

and is called here...

try { Object a = invoked("Script name", "method4", new Class[] {},   new Object[] {}); boolean b = (Boolean) a;   return b; } catch (Exception e2) {	e2.printStackTrace(); }

Edit: The class name isn't used, avoiding any confusing.

The method has no parameters either, why is it giving that exception and what does it mean?