Microsoft's (yes, really) GitHub source repo for an early access OpenJDK16 build for macOS on AArch64.

Donate to the effort or contribute a pull request if you want it to go faster. You didn't pay them, you have no contract, and they don't owe it to you. My assumption is that the ARM branch of the OpenJDK source code + the macOS bits that already exist for the macOS 圆4 release can be combined rather easily once someone with some familiarity with the OpenJDK source code has an M1-based macOS system to test it on, which should mean an adoptopenjdk macos-aarch64 release should be here within the month.īut, open source.

But, it's an open source effort, so if you're anxious, by all means, read up and contribute :)Īpple has not given any details on this architecture whatsoever until November 10th 2020, unless you bought a development kit box for it (a Mac Mini with an A14 chip, which isn't an M1 chip, but close enough I guess), and signed a big NDA.Īs a rule, open source projects will run as fast as possible in the opposite direction if you wave an NDA around, so if you dislike this state of affairs, I don't think it's wise to complain to adoptopenjdk or other packagers and open source projects about it :)įortunately, now it's out, and an NDA is no longer required. That is to say: It should not be a herculean effort to create an adoptopenjdk release that runs on M1s natively, so presumably, it will happen.

So: It's not there yet, but note that JDKs for ARM have been available for more than decade, and whilst JDK 15 has dropped support for a bunch of exotic OS/architecture combinations (such as Solaris), ARM development has always remained at least partially relevant (even if so far it's mostly an Oracle commercial license offering). That (probably) won't run on macOS on M1 hardware, but that's 95% of the work already done. If you instead leave Operation System on 'any', you'll note aarch64 is in there, and this gets you to a Linux release for ARM processors. Possibly, as Apple no doubt has a bunch of extensions built into their M1 designs, and Apple gets its own. On this page: AdoptOpenJDK Latest Releases you can select 'macOS' from the 'Operating System' dropdown, and then from 'Architecture', it's currently only 圆4, but soonish there should be AArch64 or ARM64 (those are usually the shortcodes for 64-bit ARM).

Download java jdk macos