Provide ability to deploy a new version of an application deployment

• without affecting the existing clients of the application,
• with new clients being serviced by the new version of the application deployment.

Use Case:
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1- deploy a new version of an app
2- current requests get serviced by the old version of an app
3- new requests get serviced by the new app.
4- when the old version of the app is no longer required or after a configurable time it is undeployed.

It can be implemented in stages:
Stage 1- Support provided for WAR deployments with HTTP/S clients
Stage 2- Support provided for EAR deployments with HTTP/S clients.
Stage 3- Support provided for SOAP based web services
Stage 4- Support provided for app deployments that are accessed by JMS clients (by inbound JMS messages).
Stage 5- Support provided for app deployments that are accessed by JCA requests.