RFR: JDK-8166648,,jib make run-test for langtools results in intermittent failures on windows-x86

[Tim Bell]

Hi Jon

> Looks good to me.

Thank you.

> FWIW, I recommend developers using -Xmx512 for these tests, but I think
> it is a good idea to be somewhat more lax/generous on automated build
> platforms, to avoid spurious failures.

I agree.  I was not able to get test runs to pass consistently in our 
automated system when using -Xmx512.

Tim