First release of Jakarta Portlet
Jakarta Portlet enables the development of modular, reusable web components called portlets. These components are managed by a well-defined lifecycle (implemented by a portlet container) that includes action, render, event, and resource phases. A portal uses a portlet container implementation to host and coordinate portlets, assembling their output fragments into a unified, composite application interface. Portlets render markup fragments that are aggregated by the portal, typically as a complete HTML document.
Jakarta Portlet 4.0 is focused on migrating the JSR 362 Specification and API (Portlet 3.0) from Java EE to Jakarta EE. This includes updating package namespaces from javax.portlet to jakarta.portlet, migrating XML namespaces from “http://xmlns.jcp.org/xml/ns/portlet" to “http://jakarta.ee/xml/ns/portlet", and aligning Java EE dependencies such as javax.servlet with their Jakarta EE 10 equivalents.
Future iterations of the project may introduce new features and enhancements, but the initial scope is strictly limited to completing the namespace and dependency migration to ensure compatibility with Jakarta EE 10 and to ease the migration path for developers and organizations.
As a major release, from the perspective of semantic versioning, Jakarta Portlet 4.0 introduces breaking changes that affect both portlet applications and container implementations. The renaming of packages from javax.portlet to jakarta.portlet will require source code changes and recompilation. These changes are not binary compatible with earlier versions and reflect the transition from Java EE to Jakarta EE.
Java SE 11 or higher
The Specification Committee Ballot concluded successfully on 2025-04-14 with the following results.
| Representative | Representative for: | Vote |
|---|---|---|
| Kenji Kazumura | Fujitsu | +1 |
| Emily Jiang, Tom Watson | IBM | +1 |
| Ed Bratt, Dmitry Kornilov | Oracle | +1 |
| Andrew Pielage, Petr Aubrecht | Payara | +1 |
| David Blevins, Jean-Louis Monteiro | Tomitribe | no vote |
| Ivar Grimstad | EE4J PMC | +1 |
| Marcelo Ancelmo, Abraham Marin-Perez | Participant Members | +1 |
| Werner Keil | Committer Members | no vote |
| Jun Qian | Enterprise Members | +1 |
| Zhai Luchao | Enterprise Members | +1 |
| Total | 8 |
Non-binding Votes
| Representative | Representative for: | Vote |
|---|---|---|
| Angelo Rubini | Community | +1 |
| Michael Redlish | Community | +1 |
| Total | 2 |
The ballot was run on the jakarta.ee-spec mailing list