Is master branch still needed?

[scordio]

During a fresh checkout, I noticed that master is still around.

[AustinShalit]

See here: https://github.com/github/renaming

Because GitHub has not implemented all of the backwards compatibility features yet, users who use the action as actions/setup-java@master would break if the branch was deleted right out.

[scordio]

Got it, thanks!