How can i create same key?

[Former user]

I need to create only one rsaJsonWebKey for all tokens. How should i do this using Java?

[Brian Campbell]

        RsaJsonWebKey rsaJsonWebKey = RsaJwkGenerator.generateJwk(2048);

        PrivateKey privateKey = rsaJsonWebKey.getPrivateKey();
        PublicKey publicKey = rsaJsonWebKey.getPublicKey();
        String jwkJson = rsaJsonWebKey.toJson(JsonWebKey.OutputControlLevel.PUBLIC_ONLY);

        // ... 

And use that private key to sign.