Process.exec with the linux posix_spawn mode has a bug

[forax at univ-mlv.fr]

----- Mail original -----
> De: "Alan Bateman" <Alan.Bateman at oracle.com>
> À: "core-libs-dev" <core-libs-dev at openjdk.java.net>, "Remi Forax" <forax at univ-mlv.fr>
> Envoyé: Dimanche 12 Mai 2019 10:32:59
> Objet: Re: Process.exec with the linux posix_spawn mode has a bug

> On 12/05/2019 09:23, forax at univ-mlv.fr wrote:
>> Thanks Thomas,
>> by the way, what is the purpose of jexec ?
>>
> jexec is legacy, should probably be removed [1].
> 
> It's good that the issue has been tracked down but I'm curious why it
> was initially intermittent. I would have expected it to fail every time.
> Also just to say that jlink goes out of its way to ensure that
> jspawnhelper has execute permission so I assume the issue is something
> copying a run-time image and not preserving permissions?

Yes, it was intermittent because of the way the CI + my own installation script works, either the JDK was built (using jlink BTW) and it was Ok or the JDK files are cached [1] and reused but in that case the permission was not restored. 

> 
> -Alan
> 
> [1] https://bugs.openjdk.java.net/browse/JDK-8176066

Rémi

[1] https://www.appveyor.com/docs/build-cache/