Apache MyFaces Trinidad is a JSF

JSF

JSF is a three-letter abbreviation with multiple meanings, as described below:* JavaServer Faces, a specification for developing Java-based Web applications.* Joint Strike Fighter Program...

 framework including a large, enterprise quality component library, supporting critical features such as accessibility (e.g. Section 508), right-to-left languages, etc. It also includes a set of framework features, including :

• Partial-page rendering support for the entire component set
• Integrated client-side validation
• A dialog framework
• pageFlowScope, for communicating between pages

Trinidad is a subproject of Apache MyFaces

Apache MyFaces

Apache MyFaces is an Apache Software Foundation project that creates and maintains an open-source JavaServer Faces implementation, along with several libraries of JSF components that can be deployed on the core implementation...

 project and was donated by Oracle

Oracle Corporation

Oracle Corporation is an American multinational computer technology corporation that specializes in developing and marketing hardware systems and enterprise software products – particularly database management systems...

, where it was known as ADF

Oracle Application Development Framework

In computing, Oracle Application Development Framework, usually called Oracle ADF, provides a commercial Java framework for building enterprise applications. It provides visual and declarative approaches to Java EE development...

Faces. It was renamed Trinidad after a long voting process. Trinidad is more than just a component library because it also contains a lot of goodies which solve common development challenges.