The Jakarta Persistence API (JPA), providing object-relational mapping capabilities for managing relational data in Java applications.

API for Jakarta Servlet, enabling web applications to handle HTTP requests and responses through a standard interface for building dynamic web content.

Java API for RESTful Web Services

Java(TM) Persistence API

Jakarta RESTful Web Services

Jakarta Annotations API

Jakarta JSON Processing defines a Java(R) based framework for parsing, generating, transforming, and querying JSON documents.

Jakarta Data :: TCK

Jakarta Expression Language defines an expression language for Java applications

Jakarta Messaging describes a means for Java applications to create, send, and receive messages via loosely coupled, reliable asynchronous communication services.