public static void register() throws GeneralSecurityException {
    JwtHmacKeyManager.register(true);
    JwtMacWrapper.register();
  }
Tries to register with the {@link com.google.crypto.tink.Registry} all instances of {@link
com.google.crypto.tink.KeyManager} needed to handle JWT key types supported in Tink.
java_src/src/main/java/com/google/crypto/tink/jwt/JwtMacConfig.java