Hi Michael,

See my comments inline.

On 2/27/2025 11:11 AM, Michael Hall wrote:


On Feb 26, 2025, at 9:22 PM, Michael Hall <mik3h...@gmail.com> wrote:


I don’t get that if I delete the existing dmg first.

Full verbose output at…

http://mikehall.pairserver.com/rt.txt


Is there a how-to on using --runtime-image on MacOS? How are you supposed to get a valid runtime to put into JavaVirtualMachines?

I installed jdk 23 to bootstrap a jdk build. I jpackage’d that.

jpackage --verbose -n rt -t dmg --runtime-image /Users/mjh/Documents/GitHub/jdk/build/macosx-aarch64-server-release/jdk
This command should produce a Java runtime in JavaVirtualMachines subtree.


The resulting jdk actually appears to have a similar directory layout to what is in JavaVirtualMachines.

It lacks the _CodeSignature, Info.plist, and MacOS file and directories.
This is intentional (not sure it is correct, though).


It still is not found with either “java —version” or “/usr/libexec/java_home”

I tried giving it a more standard name in case naming convention mattered.
No, it doesn't. The name you tried should work.


The built is jdk 25 and the 23 bootstrap still shows current.

I thought maybe using that runtime to build an application then jpackage would make it a valid MacOS runtime

But jpackage --runtime-image with the runtime from that gets a couple no such file exceptions on
runtime/Contents/Home/lib/libnio.dylib.dSYM/Contents/Info.plist

The app gets
HalfPipe.app/Contents/MacOS/HalfPipe
Error: could not open `/Users/mjh/HalfPipe/HalfPipe_jpkg/outputdir/HalfPipe.app/Contents/runtime/Contents/Home//lib/jvm.cfg’

Possibly not a bug but not obviously easy either.

Thank you for trying it out! I'll look closer at the issues you reported and get back to you.

- Alexey

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