110 Migrating Applications from WebLogic, JBoss and Tomcat to WebSphere V6
5.3.1 Enterprise Java Beans
EJB 2.1 adds new functions to the EJB QL language, a timer service API to
schedule tasks, and enhanced Message Driven Beans which can support any
messaging system, not just JMS. EJB 2.1 also includes better support for Web
services, through the JAX-RPC and JAXM APIs.
5.3.2 Java Server Pages
The new JSP 2.0 comes with the introduction of the JSP Standard Type Library
(JSTL) specification, an expression language and some clarifications about
ambiguities in the previous version. This last item is very important for migration
projects, because the ambiguities are caused by differences in the J2EE
implementations of the different vendors.
5.3.3 Servlets ...