Installing Vassal for older MacOS machines

[marktb1961]

Mac users on Catalina (MacOS 10.13) reported being unable to install Vassal beyond 3.7.9.

From those reports the following solution emerged:

@uckelman

For anyone who wants to run the current Vassal MacOS package on a version of MacOS which doesn’t support Java 21 or newer, the solution is to replace the bundled Java with Java 17.

Step by step (replacing “3.7.12” in steps 5 & 6 with the version of Vassal that you install):

@uckelman

1. Download the MacOS release.
2. Install it.
3. Download Java 17 .
4. Install it.
5. Delete /Applications/VASSAL 3.7.12.app/Contents/MacOS/jre.
6. Move /Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home to /Applications/VASSAL 3.7.12.app/Contents/MacOS/jre.

Note, you will need to repeat this process whenever you update Vassal.