Enterprise Java Beans 3.1: EJB components can live in the web tier. Package/deploy EJB components in a .war without an ejb-jar, EJB Timer Service.
Java Persistence Architecture 2.0: Expanded O/R mapping functionality, Standardized Hints and Properties, Expanded Query Capabilities
Servlets 3.0: Asynchronous Support (Comet)
WebBeans: EJB 3.x technology components may be WebBeans, Decouple implementations of server and client.
Java Server Faces 2.0: Allow for "zero configuration" web applications, no faces-config.xml, no web.xml.
JAX-RS: Java API for RESTful Web Services[@more@]
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