RFR: JDK-8170392: JDK-8031567 broke builds from source bundles

[Staffan Larsen]

Looks good to me!

Thanks,
/Staffan

> On 28 Nov 2016, at 13:41, Erik Joelsson <erik.joelsson at oracle.com> wrote:
> 
> In JDK-8031567, the format for storing source revision information for use in builds from source bundles changed. The behavior when building without either mercurial or the stored revision information also changed. We used to silently ignore the lack of source revision information, but now the build fails.
> 
> Since it's not an uncommon use case in our Oracle internal infrastructure (JPRT, Mach 5) to have builds without either mercurial or stored revision information, this needs to be downgraded this to at most a warning.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8170392
> 
> Webrev: http://cr.openjdk.java.net/~erikj/8170392/webrev.01/
> 
> /Erik
>