You probably shouldn’t. Last I checked the OpenJdk docker images use the Debian builds of OpenJdk and there’s been multiple times where they’ve shipped vulnerable builds. [0] You should probably just use the Zulu builds.
Wow, that's awesome - 8 had a handful of custom patches and some backports, 11 had only backports, and 17 has nothing. This is kind of the best possible story for a distribution fork!
https://news.ycombinator.com/item?id=19955958