Minimal JDK version requirements

[Jonathan Gibbons]

Keita,

Yes, that is currently to be expected, because by default, the build 
compiles certain files for use on very old versions of the platform, 
which are only supported when using JDK 8.

It would be a reasonable enhancement to update the build so that you can 
build with newer releases of JDK, if you don't mind not being able to 
run on very old releases. You can do this now if you need to by 
overriding/editing the javac command lines defined in make/Defs.gmk ... 
look for the commands that contain uses of the -source and -target options.

But, there no need to worry just yet about JDK 8 going away. The Support 
Roadmap [1] says this:


        End of Public Updates of Java SE 8

    Java SE 8 is going through theEnd of Public Updates process
    <https://blogs.oracle.com/java-platform-group/end-of-public-updates-is-a-process%2c-not-an-event>for
    legacy releases. Oracle will continue to provide free public updates
    and auto updates of Java SE 8, until at least the end of December
    2020 for Personal Users, and January 2019 for Commercial Users.

-- Jon

[1] https://www.oracle.com/technetwork/java/java-se-support-roadmap.html


On 1/26/19 11:04 AM, keita abdoul-kader wrote:
> Hello Jon, thanks for answering.
> I agree with you on both point. But i think my original question was 
> clear enough.
> I was talking the JDK requirements for building jtreg from source. 
> Last time i tried building the tip of the jtreg source code with 
> oracle jdk10 , It failed at compile time and i had to revert to using 
> oracle jdk 8
> Is that expected ?
>
> On Sat, Jan 26, 2019 at 10:18 AM Jonathan Gibbons 
> <jonathan.gibbons at oracle.com <mailto:jonathan.gibbons at oracle.com>> wrote:
>
>
>     On 1/22/19 8:14 AM, keita abdoul-kader wrote:
>     > Hello,
>     > Is there any plan to move the JDK requirement from 8 to something
>     > higher since 8 is soon to be deprecated ?
>     > Thanks
>
>
>     There's two aspects to this.
>
>     1. It should be *possible* to run jtreg on recent versions of JDK.
>
>     2. It remains the case that it is desirable to be able to run
>     jtreg on
>     old versions, to enable running tests for the oldest supported
>     version
>     of the platform.
>
>     -- Jon
>
>
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