Call for Discussion: New Project: Skara -- investigating source code management options for the JDK sources

Stuart Monteith stuart.monteith at
Mon Jul 30 15:35:14 UTC 2018

   This is perhaps tangential, but has there been any discussion on
replacing with ? I would expect any future setup to take
some measures to avoid man-in-the-middle issues.


On Fri, 27 Jul 2018 at 05:23, joe darcy <joe.darcy at> wrote:
> Hello,
> The source code management (SCM) system of a software project is a
> fundamental piece of its infrastructure and workflows. Starting in
> February 2008, the source code of different JDK releases and supporting
> projects has been hosted in Mercurial repositories under
> Code reviews of JDK changes are typically
> conducted as discussions in mailing lists over small patches sent to one
> or more lists or over webrevs hosted on Since 2008,
> many open source projects have successfully adopted more efficient SCM
> and review tooling, in some cases provided by third parties.
> In order to help OpenJDK contributors be more productive, both seasoned
> committers and relative newcomers, the Skara project proposes to
> investigate alternative SCM and code review options for the JDK source
> code, including options based upon Git rather than Mercurial, and
> including options hosted by third parties.
> The Skara project intends to build prototypes of hosting the JDK 12
> sources under different providers.
> The evaluation criteria to consider include but are not limited to:
>      * Performance: time for clone operations from master repos, time of
> local operations, etc.
>      * Space efficiency
>      * Usability in different geographies
>      * Support for common development environments such as Linux, Mac,
> and Windows
>      * Able to easily host the entire history of the JDK and the
> projected growth of its history over the next decade
>      * Support for general JDK code review practices
>      * Programmatic APIs to enable process assistance and automation of
> review and processes
> If one or more prototypes indicate a different SCM arrangement offers
> substantial improvements over the current situation, the Skara project
> will shepherd a JEP to change the SCM for the JDK.
> I propose to lead the project with the initial reviewers including but
> not limited to Tim Bell (tbell), Erik Duveblad (ehelin), Erik Joelsson
> (erikj), Tiep Vo (tiep), Tony Squier (squierts), and Robin Westberg
> (rwestberg).
> We suggest the build group sponsor this work.
> Changing the bug tracking system is out of scope for this project and is
> *not* under consideration.
> Comments?
> Cheers,
> -Joe

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