Bug 178757

[I'm filling this as DEFECT only so that it stays on our radar and gets implemented for 6.9]

Following technologies will be made optional in next release of EE (>6):

   EJB 2.x entity beans
   JAX-RPC
   JAXR
   JSR-88 (Deployment API) 

Consequently, a number of API packages are proposed optional:

   javax.enterprise.deploy.model
   javax.enterprise.deploy.model.exceptions
   javax.enterprise.deploy.shared
   javax.enterprise.deploy.shared.factories
   javax.enterprise.deploy.spi
   javax.enterprise.deploy.spi.exceptions
   javax.enterprise.deploy.spi.factories
   javax.enterprise.deploy.status
   javax.xml.registry
   javax.xml.registry.infomodel
   javax.xml.rpc
   javax.xml.rpc.encoding
   javax.xml.rpc.handler
   javax.xml.rpc.handler.soap
   javax.xml.rpc.holders
   javax.xml.rpc.server
   javax.xml.rpc.soap

"Note that these APIs are not deprecated as such. In particular, they are not tagged in the javadocs nor annotate specially. From the point of view of the API itself, everything is fine; it's in the context of the platform that we want to discourage developers from using these APIs in their new applications."

I would suggest to start with very simple solution. We can create an hint, which will appear in the editor where the developer is using class from the optional packages, notifying him about the problem. This is the simplest solution which don't require any API changes. Once there is more and more optional packages we can provide better UI support (marking classes in code completion etc.). Such a solution will require API changes.