Describe the bug

Graphql schema generation adds a type subfix (like "_Int") at the generated schema type names.

I have following classes (taken from SmallRye GraphQL extension guide)

public class Id<T> {
    public T id;
}

public class Film extends Id<Integer> {
    public String title;
    public Integer episodeID;
    public String director;
    public LocalDate releaseDate;
}

Accessing the schema through the introspect gives not the expected schema.

Expected behavior

Output of Introspect:

type Film {
  director: String
  episodeID: Int
  id: Int
  "ISO-8601"
  releaseDate: Date
  title: String
}

"Query root"
type Query {
  "Get all Films from a galaxy far far away"
  allFilms: [Film]
}

Actual behavior

Output of Introspect:

type Film_Int {
  director: String
  episodeID: Int
  id: Int
  "ISO-8601"
  releaseDate: Date
  title: String
}

"Query root"
type Query {
  "Get all Films from a galaxy far far away"
  allFilms: [Film_Int]
}

How to Reproduce?

I have created a small reproducer: https://github.com/daviddavidgit/quarkus-simple-graphql-schema-generation
It is based on: https://quarkus.io/guides/smallrye-graphql

Output of uname -a or ver

Linux david-ThinkPad-X1-Extreme-Gen-3 5.14.0-1051-oem #58-Ubuntu SMP Fri Aug 26 05:50:00 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "11.0.16" 2022-07-19 OpenJDK Runtime Environment (build 11.0.16+8-post-Ubuntu-0ubuntu122.04) OpenJDK 64-Bit Server VM (build 11.0.16+8-post-Ubuntu-0ubuntu122.04, mixed mode, sharing)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.10.0

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.8.6

Additional information

With Quarkus 2.9.0 it still worked.
With Quarkus 2.12.3 it does not work.

The problem might be in the SchemaPrinter of graphql-java.