MongoDatabase#getCollection currently only supports simple Class<T> to get MongoCollection<T>.
However, with more complex setups, where type arguments are used, it is not possible to get the correct document type for the MongoCollection.

For example, ideally, I would want to have MongoCollection<ProtoHolder<MyType>>, but it's not possible.
With current limitations I need to use MongoCollection<BsonDocument> and then manually get the codec and decode every collection's entry, in my example like that:

//noinspection unchecked,rawtypes
Codec<ProtoHolder<MyType>> codec = (Codec) database.getCodecRegistry().get(ProtoHolder.class, List.of(MyType.class));

return collection.find().map(document -> codec.decode(
        document.asBsonReader(), DecoderContext.builder().build()
));