Java Specifications
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Units of Measurement Standard - This JSR specifies Java packages for modeling and working with measurement values, quantities and their corresponding units.
Last Release on May 20, 2023
Jakarta MVC API
Last Release on May 10, 2025
Jakarta Connectors 2.1
Last Release on May 19, 2022
JavaMail API JAR
Last Release on Aug 29, 2018

Relocated → jakarta.mail » jakarta.mail-api
Jakarta Batch API
Last Release on Jun 23, 2022
Jakarta Data :: Core API
Last Release on Sep 30, 2024
Common classes used by the protocols
Last Release on May 6, 2026
The Content Repository API for JavaTM Technology Version 2.0 is specified by JSR-283. This module contains the complete API as specified.
Last Release on Sep 30, 2009
The JavaBeans(TM) Activation Framework is used by the JavaMail(TM) API to manage MIME data
Last Release on Oct 23, 2009

JavaMail API for sending and receiving emails using standard protocols like SMTP, POP3, and IMAP, supporting both text and multimedia content.
Last Release on Mar 9, 2013

Relocated → javax.mail » javax.mail-api