The current syntax to set the ACC_SUPER (0x0020) class modifier in a jasm source file is:

super public class <classname>

JEP 401 repurposed the ACC_SUPER flag into the ACC_IDENTITY flag, indicating that instances of this class have an identity.

The jasm syntax should be extended to recognize an `identity` class modifier for source files with a class file version 67.65535 or higher.