How to overcome `Prohibited package name` exception?

Question

Is it possible to turn off / override java.lang.SecurityException: Prohibited package name?

I need to extend AffineTransform class which was implemented with some lack of functionality, and I need to access members m00, m01, ... which are defined as package protected.

Answer 1

No you cant. It's hardcoded in java.lang.ClassLoader:

    if ((name != null) && name.startsWith("java.")) {
        throw new SecurityException
            ("Prohibited package name: " +
             name.substring(0, name.lastIndexOf('.')));

...

as you can see there is no option