Certain Geode functionality requires user-defined objects to be accessible for reflection. It can be difficult for users to identify non-opened JDK packages that are included in their objects.
Add an argument file that opens all JDK packages to all unnamed modules. Adding this argument file when launching a client, locator, or server on JDK 17 essentially mimics the --illegal-access=permit option from JDK 11 (at least for JDK packages).
The supplied argument file will open all packages that come with the Linux version of OpenJDK.