I don’t have Eclipse – vi is my IDE so I had to hand-edit some import statements. Here are my rules so far. I do not sugest these are perfect.
I am sure there are more – these are the ones I came across while doing the .jws files.
I like the rename – things are shorter and less wordy.

Simple remappings/rename (do these first)
.session. -> .tool.
.authzGroup. -> authz
.security. -> authz
Sometimes we had an import like
import org.sakaiproject.util.xml.Xml;
We removed the little extra “xml”
util.X.Y -> util.Y
More changes:
service.legacy.X -> X.api
service.legacy.X.cover -> X.cover
api.kernel.X -> X.api
service.framework.config.cover -> component.cover