Code review for jigsaw/jake -> jdk9/dev sync up

[Alan Bateman]

Thanks to everyone that have been reviewing these changes.

I've pushed an updated set of webrevs here:
    http://cr.openjdk.java.net/~alanb/8169069/1/

The update includes changes to address most of the reviewer comments so 
far. There are a few more cleanups that still need to be pushed today 
but I think we are otherwise in reasonable shape at this point. As I 
said in the original mail, we will keep the jake forest open as there 
are still issues to work on after this integration.

-Alan