Spring boot native image can not serialize protobuf object

I have a method

  @Cacheable(value = USER_IDENTITIES_PROTO_CACHE)    public UserIdentitiesResponseOuterClass.UserIdentitiesResponse findUserIdentitiesProto(UUID userId) {

where UserIdentitiesResponseOuterClass.UserIdentitiesResponse is a class generated by protobuff.

When using JVM everything works well but in the native image I am getting the exception

"Failure putting into cache: user_identities_proto. Cannot serialize"

I have tried to add

 hints.serialization()                .registerType(TypeReference.of(UserIdentitiesResponseOuterClass.class))                .registerType(UserIdentitiesResponseOuterClass.UserIdentity.class)                .registerType(UserIdentitiesResponseOuterClass.UserIdentitiesResponse.class);

but it did not help.

I am using Redis as a cache and using JdkSerializationRedisSerializer to serialize.

Content of proto file below:

syntax = "proto3";package identity;message UserIdentity {  string provider = 1;  string sub = 2;}message UserIdentitiesResponse {  UserIdentity primary = 1;  repeated UserIdentity identities = 2;}

if an application is run in JVM mode (not native) protobuff object is successfully serialized/deserialized. But in native image the mentioned problem happens.

I am assuming the solution would be to add the runtime hints.serialization(), but as I mentioned I did it and it did not help, so something is still missing, but it's not clear what exactly

How to fix it?