Missing sources stepping through Jigsaw code?

[Alan Bateman]

On 29/07/2016 10:43, Andrew Dinn wrote:

> :
> As Alan indicated, this is, of course, merely an artefact the EA Jigsaw
> releases being Oracle builds. The build system can be configured to
> include the missing sources in src.zip and seems to be so configured by
> default. I cannot see Red Hat being happy to follow Oracle's policy of
> omitting these sources from their OpenJDK releases. Obscurity has never
> been the a part of the Open Source way of doing things.
>
> I do think Oracle's policy -- at least wrt re these EA releases -- is
> rather self-defeating. It would actually be of great aid to those of us
> currently trying to help validate the proposed solutions to the
> outstanding Jigsaw issues if we could see what is going on inside the
> Jigsaw code from a debugger. Not everyone involved is in a position to
> build (and keep on rebuilding) a Jigsaw JDK9 release from scratch.
> Still, no doubt Oracle has its own reasons for adopting such a policy.
I thought there was an FAQ on this but I can't find it. It comes up 
periodically but basically Oracle builds do have some code and modules 
that are not in OpenJDK, the deploy area (Java Web Start for example) 
mostly. Oracle builds have include the FX modules. They are in the 
OpenJFX project (in OpenJDK), just not in the JDK 9 forests so you 
typically don't have them in your own builds (needs a configure option 
when building).

In any case, src.zip is just the .java sources. The IDEs/debuggers have 
historically used it. I don't know if it's used elsewhere but it has 
never been the complete source code. It has never include the hotspot 
code or any of the native code for example.

The only thing about src.zip that is interesting to modules is whether 
to change the layout so that the contents are organized by module. We 
have been shy about changing it, mostly because it's not clear what 
might be depending on it.

-Alan