Stabilized features

If you are migrating from an earlier release of WebSphere® Application Server, you should be aware of the various features that have been stabilized in this release.

If a feature is listed here as stabilized, IBM® does not currently plan to deprecate or remove this capability in a subsequent release of the product; but future investment will be focused on the alternative function listed under "Strategic Alternative." You do not need to change any of your existing applications and scripts that use a stabilized function; but you should consider using the strategic alternative for new applications.

This article contains the following stabilization tables:

Features stabilized in Version 7.0

Table 1. Features stabilized in Version 7.0. This table describes the features that are stabilized in Version 7.0.
Category Stabilized Function Strategic Alternative
Application programming model and container support Enterprise JavaBeans (EJB) entity beans: Container-Managed Persistence (CMP) 1.x and 2.x, and Bean-Managed Persistence (BMP) Use the Java Persistence API (JPA) for new database and other persistence-related operations.
Java API for XML-based RPC (JAX-RPC)

The Java Community Process (JCP) is limiting the focus for enhancements to the JAX-RPC runtime for building Web services; therefore, WebSphere Application Server will follow suit and limit enhancements.

Java API for XML Web Services (JAX-WS) will become the strategic runtime on which any new enhancements will be focused. The focus to ensure interoperability for the subset of capabilities that map to the JAX-RPC and JAX-WS intersection will be maintained; but all new enhancements related to updating to support new standards will be only in the JAX-WS runtime.
System administration Application server administrative (wsadmin) scripting support for the Jacl language Use Jython syntax for any new wsadmin scripting.
J2EE resources Support for configuring and using message-driven beans (MDBs) through JMS listener ports Perform the following actions to use JMS activation specifications instead of listener ports:
  • Create a JMS activation specification to replace the listener port.
  • Modify the configuration of the application's Message Driven Bean listener bindings to use the activation specification instead of the listener port.
  • Because an JMS activation specification can be defined at a wider scope than a listener-port definition (which is restricted to server scope), you might be able to replace multiple listener-port definitions with a single activation specification.
  • Update any administrative scripts that define or administer listener ports to define or administer JMS activation specifications instead.
  • Update any administrative scripts that use the stop or start operations of the ListenerPort MBean to use the pause and resume operations on the Message Endpoint MBean instead.

Features stabilized in Version 6.1

Table 2. Features stabilized in Version 6.1. This table describes the features that are stabilized in Version 6.1.
Category Stabilized Function Strategic Alternative
Edge component Edge component Caching Proxy function Use the Edge component Load Balancer with Media Access Control (MAC) forwarding in conjunction with one of the following:
  • WebSphere Application Server, Network Deployment proxy server
  • IBM HTTP Server plug-in in WebSphere Application Server, Network Deployment

For more information, read Setting up the proxy server and Setting up caching in the proxy server.

Edge component Load Balancer function that is associated with the following capabilities:
  • Content-based routing (CBR) component
  • Site Selector component
  • Cisco CSS Controller component
  • Nortel Alteon Controller component
  • Generic routing encapsulation (GRE)
  • Network address translation (NAT) forwarding method
  • CBR forwarding method
  • Remote administration
  • Rules-based load balancing
  • Wide-area load balancing
  • Mutual high availability
  • Simple Network Management Protocol (SNMP) subagent support
  • User Datagram Protocol (UDP) support
Use the Edge component Load Balancer with Media Access Control (MAC) forwarding in conjunction with one of the following:
  • WebSphere Application Server, Network Deployment proxy server
  • IBM HTTP Server plug-in in WebSphere Application Server, Network Deployment

For more information, read Setting up the proxy server.




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