How to contribute after the move to GitHub?

[Christoph Dreis]

Hi,

after the move to GitHub I’m unsure how to contribute to the OpenJDK exactly.

I’ve contributed before and I’m also familiar with GitHub, so that’s not that big of a topic, but the JDK specific flow isn't yet entirely clear to me - if there's any.
The contributing sections[1] don’t seem to be updated (yet).

Should one still discuss a potential change upfront via the respective mailing lists or is it okay to open a PR directly – even without a tracked bug yet - which is then the center of the discussion?
Given that I'm not a committer I'm also not sure how the sponsoring process has potentially changed.

Any clarification is highly appreciated.

Cheers,
Christoph

[1] - https://openjdk.java.net/contribute/