RFR: 8244212: Optionally download media and webkit libraries from latest openjfx EA build

[Kevin Rushforth]

On Thu, 30 Apr 2020 19:51:26 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> I have tested on Linux (Fedora 31) only.
>> It works as intended (with one test failure due to 15-ea+4 being too old now).
>> 
>> UPDATE_STUB_CACHE suggests there is some magic available to help manage the stub cache.
>> But as I could not find anything about it, that section in the documentation may need some love.
>
> I filed the following JBS bug to track this enhancement:
> 
> https://bugs.openjdk.java.net/browse/JDK-8244212
> 
> When you are ready for a formal review, you can change the title to:
> 
> 8244212: Optionally download media and webkit libraries from latest openjfx EA build

I'll take a closer look look once it's out for formal review, but will leave a few preliminary comments now. To answer
one question:

> UPDATE_STUB_CACHE suggests there is some magic available to help manage the stub cache.

Yeah, this bit of magic was in our closed repo. I'll see if there is some refactoring that might make sense (probably
not, since that bit is done by triggering an `ant` task).

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PR: https://git.openjdk.java.net/jfx/pull/202