RFR(S): 8211350: Remove jprt support

[Jonathan Gibbons]

*Chuckle* at the long-obsolete reference in test/langtools/Makefile

  292 apt:            JTREG_TESTDIRS = tools/apt

Otherwise, apart from other overdue cleanup, test/langtools/Makefile 
looks OK.

-- Jon

On 10/02/2018 12:21 AM, Mikael Vidstedt wrote:
> Please review this change which removes support for, and references to, the (Oracle internal) JPRT system.
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8211350
> webrev: http://cr.openjdk.java.net/~mikael/webrevs/8211350/webrev.00/open/webrev/
>
> * Background (from the issue)
>
> The Oracle internal JPRT system was once used to build and test the JDK. It has been superseded and can no longer be used to build/test mainline JDK. The support in the JDK code for running jobs in JPRT should be removed.
>
>
> * About the change
>
> The change touches several areas: build/make, hotspot, and jdk. I’m optimistically sending it out as a single webrev anyway. If it helps, I’m expecting the reviews to roughly map like so:
>
> build-dev: make related files, jprt.*
> hotspot-dev: {src,test}/hotspot
> core-libs-dev: test/jdk  - I’m especially interested in hearing if the change to test/jdk/tools/lib/tests/Helper.java (to throw if the jmods directory is missing) is valid
>
> Of course I’d welcome reviews across those mappings as well.
>
> * Testing
>
> tier1 (passed), tier2-3 still running (looking good so far).
>
> Cheers,
> Mikael
>