JDK8 - bypassing the building of the images

[Pete Brunet]

I made some changes for debugging in jdk8.  jdk ran for 9.5 min and
images for a little over 13 min.  I'm currently changing code in
javax.swing, javax.accessibility, and java.beans.  All those live in
rt.jar so it would be nice to be able to copy a newly built rt.jar to an
existing image without having to rebuild the images.  However, I didn't
find rt.jar in the jdk tree.  Does it exist; maybe I just missed it?

I know those are long build times but after trying lots of things I
haven't had any success in getting to the low build times others
experience.  A new SSD should arrive today so hopefully that will be
running by tomorrow.  I'll report the results of that in another
thread.  So maybe I won't care about build times after that but I
suspect there are others on the list also suffering from long build
times who would be interested in the answer to the above question.

Pete