JDK 12 RFR of JDK-8205615: Start of release updates for JDK 12 / JDK-8205621: Increment JDK version for JDK 12

[joe darcy]

Hello,

With the JDK 11 and 12 split fast approaching [1], it is time to work on 
the various start of release update tasks for JDK 12. Those tasks are 
being tracked under the umbrella bug JDK-8205615: "Start of release 
updates for JDK 12".

This thread is to review the build-related portions of the work 
including JDK-8205621: "Increment JDK version for JDK 12." Current webrev:

     http://cr.openjdk.java.net/~darcy/8205615.4/

A handful of test failures still need to be addressed, so there will be 
some minor adjustments to the aggregate set of changes before they are 
pushed.

Cheers,

-Joe

[1] http://mail.openjdk.java.net/pipermail/jdk-dev/2018-June/001462.html