Caffeine cache X509Certificate

Question

I'm developing an option in one project that encrypts some data using X509Certificate. This project uses Spring Boot. I do encryption with BouncyCastle library.

To encrypt data I have to download recipient's certificate from some server. That's simple, I use Apache HttpClient. But frequent downloads can put a heavy load on the server, so I want to cache this certificate.

I have two methods:

public X509Certificate getFromServer() {
    // do some actions...
}

This method downloads certificate from server

public boolean isRevoked(X509Certificate cert) {
    // do some actions...
}

This method checks if a certificate has been revoked.

My goal is cache getFromServer method. I need to set up cache eviction policy, that:

1. Evicts certificate if it has expired.
2. Evict certificate if it has revoked.

Can anyone help me?