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

[Alan Bateman]

On 28/11/2016 14:47, Chris Hegarty wrote:

> :
> 2) jartool Main.java
>    Maybe concealedPackages should have a comment about its use ( it is
>    used in the Validator, and not by Main at all ).
>
Just on this one, I think this was introduced when Steve added the MR 
JAR validation, I agree it's ugly but we haven't changed it here. I'll 
add a comment as you suggest but it does some overall cleanup as part of 
finishing up the MR JAR work.

-Alan