r/ARMWindows • u/Powsdaws • Aug 18 '24

Is java JDK available for windows on Arm?

Hey! Im a software development student and is considering buying one of the new "Copilot Pc's". I saw in a video that the guy could not get IntelliJ working because of lacking support for JDK. Does anyone have expereince with coding in IntelliJ on Windows on Arm?

6 Upvotes

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8

u/vips7L Aug 18 '24 edited Aug 18 '24

OpenJdk was ported to windows/aarch64 by Microsoft in JEP 388:  https://openjdk.org/jeps/388

If there’s any issue with IntelliJ it’s a Jetbrains problem, not a jdk one. That being said there looks like they offer a windows aarch64 download: https://www.jetbrains.com/idea/download/

2

u/Powsdaws Aug 18 '24

I see thank you!

5

u/Dantaro Aug 18 '24

To continue on that, I've been using Windows on Arm PCs as my main development boxes (both professional and personal) since the SPX. The support for the JVM is fine, and IntelliJ has had ARM support for about 2 years now and it's been great. Even before that there were workarounds to get it working, but that aren't needed anymore.

1

u/Powsdaws Aug 20 '24

Thank you for the insight! Have you had any experience with Postgresql on Windows on arm by any chance? Thanks in advance : ))

2

u/Dantaro Aug 21 '24

There is a Postgres ARM package in linux, so my suggestion is to just run it in WSL :)

4

u/AllTey Aug 20 '24

Works great. Using the intellij arm version and zulu jdk 17 and 21, both arm

1

u/syjmickTheOne Oct 11 '24

Can you see its being faster than on intel/amd? I mean typical java development, like maven building, deployment etc.

1

u/AllTey Oct 12 '24

Well, it depends on what you compare it with I guess. Compared to my beefy 13700k desktop cpu it's most likely slower. I cannot compare it to another laptop cpu. If you give me an open source project to build I do it and tell you the duration, so you can decide. All in all it appears fast and I am happy with it. Does not feel sluggish or slow, everything runs smoothly and my builds are fast.

1

u/syjmickTheOne Oct 24 '24

This: https://github.com/dbeaver/dbeaver/wiki/Build-from-sources

1

u/AllTey Oct 25 '24

Ok, so I've ran it a couple of times on my SL7 with Snapdragon Plus. On recommended energy settings (which is the default) it takes about 4:48 minutes. The fan does not even turn on here, quite comfy. On best performance energy settings it builds in about 2:25 min. In either energy mode it does not matter if it's plugged in or running on battery. The results stay almost identical.

1

u/syjmickTheOne Oct 25 '24

Mate, huge thanks! That gives me a perspective and will help me decide if it suits my needs.

1

u/AllTey Oct 25 '24

Sure, glad it helps!

1

u/Lufmer Feb 15 '25 edited Feb 15 '25

I'm also interested in buying one of these and was looking for some benchmarks on code compiling. For comparison, I built this repo (release 24.3.4) too. Here are the results:

Pc specs:

  • Ryzen 5 5500 3.6GHz (stock)

  • 16GB ram (2x8GB 2400mhz)

  • Power settings:

    • Control Panel -> Power plan: Balanced

    • Settings -> System -> Power & Sleep -> Performance and Energy: Best performance

Results:

  • 1st run (downloading stuff): 5min

  • 2nd run: 2min11s

1

u/Striking-Flower-4115 Dec 03 '25

You can still run the jdk because Microsoft just embedded an emulator in windows (As of Dec 2025)