JavaServer Pages Standard Tag Library (JSTL) providing a set of tags for common tasks like iteration, conditionals, formatting, and database access in JSP.

Standardized API for object-relational mapping in Java applications, part of the Java EE stack.

JavaBeans Validation (Bean Validation) is a validation model that can add constraints to the beans with annotations placed on fields, methods, or classes.

Jakarta Activation API 2.2 Specification

The Content Repository API for JavaTM Technology Version 2.0 is specified by JSR-283. This module contains the complete API as specified.

The official API for JavaServer Pages (JSP), enabling dynamic web page generation in Java EE.

API for JavaServer Pages (JSP), allowing Java code to be embedded into HTML pages for dynamic content generation.

JavaMail API for sending and receiving emails using standard protocols like SMTP, POP3, and IMAP, supporting both text and multimedia content.

APIs for CDI (Contexts and Dependency Injection for Java)

Jakarta Dependency Injection