public Class<?> resolveClass(java.io.ObjectStreamClass streamClass)
                    throws java.io.IOException, ClassNotFoundException {
                        Class c = Class.forName(streamClass.getName(), false, loader);
                        if( c == null ){
                            return super.resolveClass(streamClass);
                        } else {
                            return c;   // Class loader knows of this class.
                        }   // end else: not null
                    }