jboss-switchyard/tools — pull request #70 by rcernich (2012-06-08 16:04:21+00:00)
Title: SWITCHYARD-855 when changing implementations, do not update component services/references

service is added if no service is defined on the component.
references are added if no references are defined on the component.

this seems the best compromise to catch cases where the user has already defined service/references on an abstract component, plus automatically adding things when the previous component/implementation did not specify them, but the new implementation does.