Looking ahead: proposed Hg forest consolidation for JDK 10

[Joseph D. Darcy]

Hello,

On 10/13/2016 11:44 AM, Lindenmaier, Goetz wrote:
>
> Hi,
>
> the problems we encounter with jtreg are not that much that it’s not
>
> compatible with tests in 8. It’s not compatible with older builds
>
> of 9.
>
> It’s a problem to run a new jtreg with an older build of jdk9.
>
> Our internal sources of 9 are aprox. 5 months behind and we always
>
> test them with an older jtreg.
>
> We never now when and to what version we should go if these break.
>
> For our openJdk 9 build it’s easy as we build tip, and so jtreg tip 
> should work.
>
> Unfortunately I don’t remember the issues we encountered. But looking 
> at the
>
> repo “remove support for acception old-style module system options” would
>
> be a candidate.
>
> But what kind of bugs are you fixing there you would have to downport
>
> to a runner for 8?  Bugs that crash the runner? They are rare, aren't 
> they?
>
>

FYI, in the roots of the regression tests in the TEST.ROOT files, there 
is an entry like

     requiredVersion=4.2 b03

which means that jtreg 4.2 b03 or later needs to be used. If you are 
running to problems with jtreg on JDK 9, I suggest using the exact 
version listed in the TEST.ROOT file.

HTH,

-Joe