First build-infra push to jdk8 -- try out the new build system!

[Fredrik Öhrström]

----- mike.duigou at oracle.com skrev:
> Would it be too early to report  ‘warning: -jN forced in submake:
> disabling jobserver mode.’ results?

Not at all, this is a side effect of calling the old makefiles,
which do not support multiple jobs. When all the old makefiles
are converted, this message will disappear.

//Fredrik