Question

I used some code from another question to access the private field “classes” in the Java ClassLoader. This works fine, however when I move it to an applet it gets messed up with this exception: access denied (java.lang.RuntimePermission accessDeclaredMembers). I’ve done some searching and tried using PrivlegedExceptionAction to skip that, but it isn’t working. So my question is this: is is possible to bypass this, and if not what is another way to get a list of classes?

Reflection Code:

final ClassLoader cLoader = getClass().getClassLoader();
            final Field f = ClassLoader.class.getDeclaredField("classes");
            AccessController.doPrivileged(new PrivilegedExceptionAction() {
                    public Object run() throws Exception {
                        f.setAccessible(true);
                        return null;}});
            Vector<Class> classes = (Vector<Class>)f.get(cLoader);
            cList.addAll(classes);

Answer 1

Digitally sign the applet code (then get the user to accept it when prompted) to gain full privileges.