- Jakarta XML Binding (JAXB)
- Jakarta JSON Binding (JSONB)
- [Jakarta EJB] (https://jakarta.ee/specifications/ejb/3.2/)
- [Jakarta Enterprise Beans] (https://jakarta.ee/specifications/enterprise-beans/3.2/)
- [Inject (JSR-330)] (https://jakarta.ee/specifications/dependency-injection/1.0/)
Plus some missed classes from stdlib.