Here's an overview of all RI's (and alternatives).
Java Platform, Enterprise Edition 6 (Java EE 6) - JSR 316
- Oracle Glassfish 3.x (RI)
- JBoss AS 6.x and 7.x
- IBM WebSphere 8.0
Java Architecture for XML Binding (JAXB) 2.2 - JSR 222
- Oracle JAXB (RI, used in Glassfish 3)
- Oracle Metro
Java API for XML-Based Web Services (JAX-WS) 2.2 - JSR 224
- Oracle JAX-WS (RI, used in Glassfish 3)
- Oracle Metro
- Apache CXF 2.x
Contexts and Dependency Injection for Java - JSR 299 and JSR 330
- JBoss Weld (RI, used in Glassfish 3)
- Apache OpenWebBeans
- Resin CanDI (JSR299 only)
Bean Validation 1.0 JSR 303
- Hibernate Validator (RI, used in Glassfish 3)
- Agimatec Validation
- GWT Validation
Java API for RESTful Web Services (JAX-RS) 1.1 - JSR 311
- Oracle Jersey (RI, used in Glassfish 3)
- JBoss RESTEasy (used in JBoss AS)
- Apache CXF 2.x
- Apache Wink
- Grails JAX-RS
JavaServer Faces 2.0 - JSR 314
- Oracle Mojarra (RI, used in Glassfish 3)
- Apache MyFaces 2.0
Java Servlet 3.0 and JavaServer Pages 2.2/Expression Language 2.2 - JSR 315 and JSR 245
- Oracle Glassfish 3.x (RI)
- Resin 4.0.1+
- Apache Geronimo 3.0
- Apache Tomcat 7.0
- Eclipse Jetty 8.0
Java Persistence API (JPA) 2.0 - JSR 317
- EclipseLink (RI, used in Glassfish 3)
- OpenJPA 2.0
- Hibernate 3.5.x
Enterprise JavaBeans (EJB3) 3.1 - JSR 318
- Oracle Glassfish 3.x (RI)
- Apache TomEE and OpenEJB (EJB 3.1 lite)
- BuzyBeans (EJB 3.1 lite)
