RFR: JDK-8244036 Refresh SetupJavaCompilation, and remove support for sjavac

[Magnus Ihse Bursie]

On 2020-04-30 15:50, Florian Weimer wrote:
> * Magnus Ihse Bursie:
>
>> I made sure that no build performances were measured on my system, and
>> since I saw no such indication, I did not make any more systematic analysis.
>>
>> What is the difference if you run with or without the javac server?
> Thanks.  Which configure flags do you want me to test?
>
Four measurements:

Prior to JDK-8244036: configure with --enable-javac-server and 
--disable-javac-server, and "make jdk-image"

After JDK-8244036: configure with --enable-javac-server and 
--disable-javac-server, and "make jdk-image"

Make sure you purge the build directory between runs.

If any of them show major differences with and without JDK-8244036, you 
can try running that option for more granular targets, e.g. "jdk".

/Magnus