Issue running on Mac OSX Monterrey with M1 processors

[MRigal]

Platform
Mac OSX Monterrey (12.4), with Apple Silicon M1 Pro processor

Version
Tried with 4.1.18 and with 4.2.10

Describe the bug
The game is impossible to start.

To Reproduce
Steps to reproduce the behavior:

1. Install java bia brew install java[@11]
2. Download Unciv.jar
3. Run the command specified at https://yairm210.github.io/Unciv/Other/Installing-on-macOS/
4. See error

Please note that the behaviour is the same with OpenJDK 18 and 11. I've also tried without the headless option, also without success. Please note that I had it working on an older, Intel-based Mac with openjdk11, see #2551

$ /opt/homebrew/opt/openjdk/bin/java --version
openjdk 18.0.2.1 2022-08-18
OpenJDK Runtime Environment Homebrew (build 18.0.2.1+0)
OpenJDK 64-Bit Server VM Homebrew (build 18.0.2.1+0, mixed mode, sharing)
$ /opt/homebrew/opt/openjdk/bin/java -XstartOnFirstThread -Djava.awt.headless=true -jar Unciv.jar
Exception in thread "main" java.awt.HeadlessException
	at java.desktop/sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:186)
	at com.unciv.app.desktop.DesktopLauncher.main(DesktopLauncher.kt:55)
$ /opt/homebrew/opt/openjdk/bin/java -XstartOnFirstThread  -jar Unciv.jar
zsh: trace trap  /opt/homebrew/opt/openjdk/bin/java -XstartOnFirstThread -jar Unciv.jar

Expected behavior
I thought the jar could be used also this way on Mac OSX. I haven't tried yet to compile it.

[yairm210]

Oh shoot
That error specifically looks like it may have to do with the screen resize code?
Can I bother you too check 4.2.9?

[yairm210]

Also you shouldn't need the -XStartoffirstthread anymore, try running without that? Just a hunch, maybe that's what makes it 'hesdless' and makes the java toolkit not recognize the screen size

[MRigal]

Also you shouldn't need the -XStartoffirstthread anymore, try running without that? Just a hunch, maybe that's what makes it 'hesdless' and makes the java toolkit not recognize the screen size

Unfortunately not... :-/

$ /opt/homebrew/opt/openjdk/bin/java -Djava.awt.headless=true -jar Unciv.jar
Exception in thread "main" java.awt.HeadlessException
	at java.desktop/sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:186)
	at com.unciv.app.desktop.DesktopLauncher.main(DesktopLauncher.kt:55)

[MRigal]

But lol /opt/homebrew/opt/openjdk/bin/java -jar Unciv.jar just works :-D

It actually works well both with openjdk 11 and openjdk 18. So I think you just need to update the docs for Mac OSX installation :-)

Thanks @yairm210 !!! 💯

[nacro711072]

i will update relative doc.

[MRigal]

Fixed by @nacro711072 in the docs with #7828 :-)