Jakarta Faces defines an MVC framework for building user interfaces for web applications, including UI components, state management, event handing, input validation, page navigation, and support for internationalization and accessibility.

The JavaHelp API provides a platform-independent help framework.

Java EE Connector Architecture API

EJB

Jakarta JakartaEE Web API

Project GlassFish Enterprise JavaBean API

JACC API

Jakarta Authentication defines a general low-level SPI for authentication mechanisms, which are controllers that interact with a caller and a container's environment to obtain the caller's credentials, validate these, and pass an authenticated identity (such as name and groups) to the container. Jakarta Authentication consists of several profiles, with each profile telling how a specific container (such as Jakarta Servlet) can integrate with- and adapt to this SPI.

Units of Measurement Standard - This JSR specifies Java packages for modeling and working with measurement values, quantities and their corresponding units.

JSR 356: Java API for WebSocket