Number of the same anonymous class(TypeReference) declarations

Question

I'm working on a project where we have to deal with a number of JSON entities and an SDK to make calls for that JSONs. To map JSON to DTO we use the Jackson library and TypeReference class.

Let's say there is a Repository do deal with a certain type of JSONs and there are methods that use new TypeReference under that hood.

class Repository {
   a() {
      new TypeReference<MyDto> {}
   }

   b() {
      new TypeReference<MyDto> {}
   }

}

It would create next classes after build:

Repository$1.class
Repository$2.class

Basically, I have 2 global questions :

1. Would the number of declarations of the same TypeReference affect somehow my project? Because there would be generated .class files for each declaration. Would it affect a classloader?

2. Would you suggest any best practices to deal with TypeReference? Should I put them into a dedicated util class? Should it be a singleton instance of TypeReference or it doesn't make any sense to have it as a singleton?

Move to util class to prevent over-creating of .class files.