Digitally Signed Code Restriction Solution

I am in need of an expert in Java to devise a reliable solution that only allows digitally signed code to run. This solution should be generic and future-proof, and should work effectively on both Windows 10 and Windows 11 clients.

Key Requirements:
- The solution should allow only digitally signed code to operate.
- It should permit code exclusively from specific trusted publishers.
- Although the preference is for a solution using OpenJRE (OpenJDK), it cannot exclude compatibility with Oracle's JRE.
- This solution will be applied specifically to Desktop applications.
- The solution has to be "future proof" due to the SecurityManager is getting removed in newer Java versions.
- Each execution of Java should display a slash screen informing the user that the classes used are being checked for their digital signature.

Ideal Skills And Experience:

- Deep knowledge of Oracle's JRE and OpenJRE (OpenJDK)
- Extensive experience with Java desktop applications
- Understand the principle of digital signing of code
- Ability to create solutions compatible with Windows 10 and Windows 11.

With your expertise, I'm hopeful we can construct a strong and functional approach to this issue.