Project Status

Apache Pluto is a subproject of the Apache Portals Project. The current stable release of Apache Pluto is version 2.0.3. However, version 3.0 is under development and is nearly complete. Pluto 3.0 provides the reference implementation and technology compliance kit for JSR 362 Portlet Spcification 3.0. It complies to the JSR 362 and JSR 286 standards.

Pluto 3.0

Pluto 3.0 is the current main development branch. The Pluto 3.0 portlet container is the reference implementation for JSR 362 Java Portlet Specification 3.0. Pluto 3.0 drops the requirement for pre-processing portlet web applications. The JSR 362 specification adds configuration through annotation, asynchronous support similar to the servlet asynchronous support, multipart form support, support for CDI beans, method annotation support allowing portlet methods to reside in different classes, and a JavaScript API that allows portal pages to function as single-page applications. The Pluto 3.0 portlet container implements all JSR 362 features and passes the TCK. While doing so, Pluto 3.0 remains fully compliant to the 2.0 Portlet Specification, meaning that version 2.0 portlets can run on the version 3.0 portlet container.

Pluto 2.0

Pluto 2.0 is the current trunk of development and has an active development community. Version 2.0 has a new architecture and is a rewrite of the Pluto 1.1 code-base. Pluto 2.0 is the reference implementation of version 2.0 of the Java Portlet API specification (JSR-286). The JSR-286 specification adds interportlet coordination (events and shared render parameters), portlet filters and resource serving to the Portlet API in addition to numerous other changes from version 1.0. However, Pluto 2.0 is also fully compliant to the 1.0 Portlet Specification. Pluto 2.0, like Pluto 1.0.1, but unlike Pluto 1.1, runs inside the Jetspeed portal. Pluto 2.0 is embedded in Jetspeed 2.2.x versions, whereas Pluto 1.0.1 is embedded in Jetspeed 2.1.x versions.

Pluto 1.1

Pluto 1.1 introduced a new container architecture from version 1.0.1. If you are embedding Pluto in your portal, realize that 1.1 is not binary compatible with Pluto 1.0.x. Pluto 1.1 is no longer actively developed. Version 1.1 is only maintained for bug fixes in dependent portals.

Pluto 1.0.1

Pluto 1.0.1 was the first stable release of Pluto. This version of Pluto is utilized as the portlet container for Jetspeed and other portals. In addition, Pluto 1.0.1 is embeded within Apache Geronimo. Pluto 1.0.1 is no longer activily developed. 1.0.1 is only maintained for bug fixes in portals such as Jetspeed 2.1.x.